游宇的博客

Office chair materials are: 1: Casters: ordinary casters, PU wheel (soft materials, suitable for wood flooring, and the engine room). 2: chair legs : the thickness of the iron frame directly affect the chair life. Surface treatment: polishing, painting, paint (surface gloss, easy to paint), plating (wood can not be plated), plating quality is good, it is not easy to rust. 3: gas rod: also known as the extension rod, used to adjust the height and rotation of the chair. 4: Chassis: hold the seat of the seat, the following connection with the gas rod. 5: chair: from the board, sponge, fabric composition. The quality of the board is usually not felt by the consumer. Sponge: renewable cotton, new cotton. 99% of the manufacturers are used with both, the thicker the more hard, the higher the cost, the appropriate thickness, the hardness can be appropriate. Hand seat, fabric: Ma Rong, mesh, leather. Plastic frame pressure on the cloth. Such chairs are more breathable. 6: Handrail: Thic...

With a rigid material to form a certain shape of the grid for climbing plants climbing garden facilities, also known as scaffolding, green corridor. Flower rack can be used for shade rest, and can be decorated with garden. The flower rack design is to understand the origin and growth habits of the plant to be used in order to create a condition suitable for plant growth conditions and styling requirements. Now the flower rack, there are two aspects of the role. On the one hand for people to rest, enjoy the scenery; on the one hand to create the conditions of climbing plant growth. So it can be said that the flower rack is the closest to the natural garden of the sketch. The form of flower racks are: The most common form, the plate supported on the left and right beams, visitors can enter the rest. ② pieces of flower racks. Plate embedded in the unidirectional beam column, both sides or side of the cantilevered, light and lively body. ③ stand-alone flower rack. To a variety of mater...

The steel spill pallet can also be used for storing, handling and separating oil drums and chemical drums Coming in high quality, good performance and lasting serving time. Steel Spill Pallet The steel spill pallet can also be used for storing, handling and separating oil drums and chemical drums. It is made of 3mm hotrolled steel plate, stable and durable. The pallet body is coated with epoxy resin powder, forming a bright, dust-proof, rust-proof and moisture-proof surface. The fiberglass-reinforced grate of light weight, high strength, wear resistance and aging resistance can be removed for easy cleaning. The pallet can meet the handling needs of various forklifts. The cart type two-drum pallet, with large sump capacity, is more convenient to operate. It is designed in accordance with the leakage containing standards, and has passed the 100% leakage containing test. With the drum bracket at the pallet center, the load can be distributed, thus achieving higher performance. The 3/...

Reflective cloth can be divided into two kinds, one is the traditional sense of the reflective cloth, there is a reflective inkjet cloth, reflective inkjet cloth, also known as crystal color grid reflective material. Reflective cloth production principle: the high refractive index of glass beads with coating or coating process to do in the cloth base surface, making the ordinary fabric in the light irradiation can reflect the light. Mainly used for road safety and related products, is widely used in reflective clothing, all kinds of professional clothing, overalls, fashion, shoes and hats, gloves, backpacks, personal protective equipment, outdoor supplies, can also be made into various types of reflective products ,accessories. Reflective inkjet cloth that is cloth-crystal lattice, belonging to the crystal lattice series micro-prism structure cloth-based reflective material. Crystal color grid is a new type of reflective ink advertising material, this material is characterized by...

Chromium layer has a high hardness, according to the bath composition and process conditions, the hardness can be a wide range of 400 ~ 1200HV changes. Chromium layer has good heat resistance, heating at 500 ℃ below its gloss, hardness, no significant change in temperature greater than 500 ℃ began to oxidative discoloration, greater than 700 ℃ hardness began to decrease. The friction coefficient of the chrome-plated layer, especially the dry friction coefficient, is the lowest among all the metals. So the chrome layer has a good wear resistance. Chromium plating from the commonly used chromic acid plating, compared with other single metal plating, chrome-plated liquid although the composition is simple, but the chrome plating process is quite complex, and has the following characteristics. ① chrome-plated liquid is not the main component of chromium metal, but chromium-containing acid - chromic acid, is a strong acid bath. During the electroplating process, the cathodic process i...

The vibrating screen is operated by reciprocating vibrations generated by vibrator excitation. The upper rotating hammer of the vibrator causes the plane sagging vibration of the sieve surface, while the lower rotating hammer causes the cone to produce the cone rotation vibration, and the combined effect of the screen surface causes the double-axis vibration. The vibration trajectory is a complex spatial curve. The curve is projected in a horizontal plane as a circle, and the projection on the vertical plane is an oval. Adjust the upper and lower rotating hammer of the exciting force, you can change the amplitude. And adjust the upper and lower hammer space phase angle, you can change the screen surface trajectory and change the shape of the material on the screen trajectory. High efficiency, light weight, complete and diverse series, more layers, for dry material screening to meet the demand. Linear vibrating screen The vibrating screen uses vibrating motor as the vibration sourc...

PE pipe production line selection of special HDPE, PP pipe efficient extruder, screw with barrier and mixing head structure, barrel with a new slotted barrel, plastic and mixing effect is good, large and very stable extrusion. Production line characteristics 2. PE pipe production line for the HDPE, PP large diameter thick-walled pipe design of the spiral die, the die with a low melt temperature, mixing performance, cavity pressure is low, the characteristics of stable production. 3. PE pipe production line using proprietary technology of the sizing and cooling system, the use of water film lubrication and water ring cooling to meet the HDPE, PP material requirements to ensure high-speed production of thick-walled tube is the diameter and roundness of the stability. 4. PE pipe production line using a specially designed multi-stage vacuum control vacuum box, to ensure that HDPE, PP pipe size and roundness. Extruder, traction machine imported brand-name governor dynamic and control...

Extrusion of plastic pallets - hollow blow molding is similar to the general blow molding method for hollow products. Because of its large size and double-sided type, larger extruders, molds and molds are required. At present, the domestic hollow molding machine manufacturer has developed a professional high-speed production of high-strength blow molding tray of large-scale hollow molding machine, the use of HMWHDPE high-strength plastic production, forming speed, product quality, with high strength, high stiffness, very long Life, the general life of blow molding tray can reach 5 to 10 years, and can be -40 ~ 40 ℃ in the environment to stabilize the work. The dynamic load of its products can reach more than 3t, bending strength have reached a higher level. Is the preferred pallet for long-life, high-strength environments that are currently priced at higher prices than other plastic trays because of their long service life, so its price is the highest of all trays. This method with...

Fiber laser cutting machine is a laser cutting machine using a fiber laser generator as a light source. Fiber laser is a new international development of a new type of fiber laser output high-energy density of the laser beam, and gathered in the workpiece surface, so that the workpiece is ultra-fine focus spot irradiation area instantly melting and gasification, through the CNC mechanical system to move the spot Irradiation position and achieve automatic cutting, fast, high precision. main feature (1) fiber laser light-conversion efficiency, conversion efficiency of 30% or more, low-power fiber lasers without chillers, the use of air-cooled, can save a lot of power consumption, save operating costs, to achieve the highest production effectiveness; (2) the laser operation requires only electrical energy, no need to generate additional laser gas, with the lowest operating and maintenance costs; (3) fiber laser using semiconductor modular and redundant design, resonant cavity with...

Elevator control cabinet, is a variety of electronic devices and electrical components installed in a safety protection of the cabinet structure within the electronic control device. Also known as the elevator central control cabinet . Elevator control cabinet is used to control the operation of the elevator device, generally placed in the elevator room, the machine room elevator control cabinet placed in the hoistway. Control cabinet by the sheet metal frame structure, bolted assembly. Sheet metal frame size uniform, and can be used to easily hang plastic pin, remove. The front panel is equipped with a rotatable pin hook that constitutes a lockable door that can be locked to contact all components installed in the control cabinet from the front so that the control cabinet can be installed close to the wall. Commonly used two elevator control cabinet a) two doors b) three doors. The installation of the control cabinet should follow the maintenance of convenience, inspection of the...

working principle The mixer is determined by a number of parameters, and it is not possible to a mixer with any single parameter. The shaft power (P), the blade discharge (Q), the indenter (H), the blade diameter (D) and the stirring speed (N) are five basic parameters describing a stirrer. The displacement of the blades is proportional to the flow rate of the blades themselves, the primary side of the blade speed and the third power of the blade diameter. While the shaft power consumed by the stirring is proportional to the specific gravity of the fluid, the power of the blade itself, the cubic power of the speed and the fifth power of the blade diameter. In the case of a certain power and paddle, the paddle discharge (Q) and the indenter (H) can be adjusted by changing the matching of the diameter (D) and the speed (N) of the blade, i.e., the large diameter paddle The low speed (guaranteed shaft power constant) of the mixer produces a higher flow and a lower pressure head, while th...

Tripod installation steps 1, first remove the tripod, and then put the triangle open. In the position of the foot there is a limit slot for selecting the opening angle. Set the three legs to the same slot. 2, and then is to adjust the length of the tripod are divided into several sections, when used in order to solid. Everything is the best of a lengthening. That is, each tripod has chosen to open the same section. 3, will be fixed screw loose, the tripod extension. And then tighten the screws. The tripod to choose a flat position put away, at least to ensure its stability, will not shake down. 4, followed by the adjustment of the head. PTZ is divided into three-dimensional head and spherical head, three-dimensional PTZ used in photography more common. The benefits of a spherical pan / tilt are portable, and the pan / tilt head generally has three adjustment knobs. One is the horizontal turn knob 5, the other two is the ball fixed knob, the two will be able to loose the ball...

Coffee machine people to the application of electronic technology to the coffee machine, to achieve the milling, pressing powder, filling powder, brewing, cleaning debris and other coffee production of the whole process of automatic control, creating a coffee machine . use Steps / methods Choose coffee powder. In fact, coffee beans are OK, it is necessary to wear their own grinding. There are a variety of flavors of coffee, what vanilla flavor ah, there are five tastes of taste, from MILD to DARK. With filter paper, there are bamboo to do, there are ordinary. The filter paper into a funnel-shaped, according to personal taste will be a few tablespoons of coffee powder into the filter paper (usually put on the number of coffee packaging will be). The benefits of filter paper is large, not only can filter slag, but also increase the flow of coffee over the time, so that coffee becomes fragrant, but also easy to clean. Put the coffee with filter paper like this into the filter basket...

A vibrator is an instrument that directly indicates the peak, peak-to-peak, average, or rms value of vibrations such as displacement, velocity, acceleration, and acceleration derivatives. The main parts of this instrument are, integral differential circuits, amplifiers, voltage detectors and heads.  The integral   differential circuit is used to complete the above-mentioned vibration between the integral and differential operation, generally can be used integral, differential operational amplifier, can also be used low-pass filter, high-pass filter to complete the integral and differential operation. However, the use of this instrument should be calculated when they pay attention to their application frequency range. The vibrator can only give people the total strength (vibration level) of the vibration, and can not obtain other information, and therefore use a limited range. The method of measuring the vibration requires that it does not have any effect on the measured vib...

The childbirth bed is a kind of monomer bar, is the sow delivery place of feeding. The middle of the broiler bed is a sow limiter, where the sow is given birth and the piglets are breastfeeding, and both sides are places where piglets feed, drink, warm and move. Sow limiters are generally made of round steel pipe and aluminum alloy, the rear part of the installation of loose floor to remove feces and dirt, both sides of the piglet activity column, used to isolate piglets. The size of the broiler bed is related to the size of the sow species selected by the pig farm, which is generally 2.2-2.3m long and 1.7-2.0m wide. The sow has a limit of 0.6 ~ 0.65m and 0.6m and 1m Fence, ground height of 30cm, and every 30cm welding a solitary feet. Bedding can be used in different materials and structural forms: (1) the use of solid concrete floor, the ground from front to back after 3% slope, easy drainage. (2) the use of part of the metal floor of the floor that is the second half of the groun...

Packaging bags are used for packaging a variety of supplies bags, so that the goods in the production process to facilitate the transport, easy to store. Widely used in daily life and industrial production. The actual figures show that 80% of the plastic bags used, and the general garbage is shipped to the garbage dump area, only seven percent of the plastic recycling is recycled. Packaging itself is also more and more significant commodity, it has become a no longer attached to the production of special products, a commodity is inseparable from the widely used products. National scientists have developed an environmentally friendly plastic bags made of electrolytes, this environmentally friendly plastic bags can not only be harmless decomposition, and this environmentally friendly plastic bags can also be dissolved in water. According to scientists explained that life in the common polymer plastic materials made of products that take hundreds of years to be able to completely be...

A wine box, usually a box containing vintage wines. Materials are: wooden boxes, leather boxes, metal boxes and cartons. Different shapes, for shock and decoration. First, the wine box (red wine box) Usually include logs and wine boxes (multi-purpose materials are pine, Paulownia, etc.), imitation mahogany wine box (multi-purpose material with MDF, etc.), the shape of diversification for high-end wine packaging. Second, the wine box (red wine box) Most of the use of PU, PVC and other artificial leather made of leather packaging is more suitable for the characteristics of wine, from the capacity can be divided into single, double support, four loaded and six loaded. Third, the metal wine box (metal red wine box) Metal wine box market is less, not widely used, most of the use of aluminum, iron, other alloys made of such. Four, wine carton (red wine carton) Wine carton more use of cardboard, corrugated paper, specialty paper, etc., because the raw material is easy to use the se...

Studs, also known as double-headed screws or studs. Used to connect the machine to the fixed link function, both ends of the studs are threaded, the middle of the screw, there are thick and fine. Generally used in mining machinery, bridges, cars, motorcycles, boiler steel structure, hanging tower, large span steel structure and large buildings. Bolt refers to a larger diameter of the screw, you can also no head, such as studs. General, not called "studs" and called "studs". The most common form of stud studs is threaded at both ends and the middle is a light bar. The most typical use: anchor bolts, or similar feet bolts place, thicker connection, with ordinary bolts can not be achieved. 1, used in the main body for large equipment, need to install accessories, such as mirrors, mechanical seal seat, reducer and so on. Then use the double-headed bolts, one end screwed into the main body, the other end of the annex to install the nut, because the attachment is oft...

Memory bubble pillow introduction is also known as space memory pillow, zero pressure memory pillow , slow rebound sponge pillow, polyether polyurethane pillow and so on. The same time as the above. Polyether polyurethane developed by the US Space Agency to resolve the pressure of astronauts, and then gradually used in the medical, civilian products, especially the pillow made of this material, with viscoelastic characteristics, with the head and neck position Of the change, automatic deformation, at any time to keep tight fit with the neck position, in particular, can fix the head, do not let the head down caused by "pillow." Is a kind of pillow made of slow rebound material, not to increase the memory of the people but because often used pillows will form the shape of the head and neck, so called memory pillow. Slow rebound pillow generally have the following characteristics: 1, absorb the impact, pillow in the above feeling like floating in the water or the clouds, the s...

The process of electrostatic photocopying is essentially an optoelectronic process in which the latent image is an electrostatic image consisting of electrostatic charge. The charging, developing and transferring processes are based on the principle of electrostatic attraction. Affordable. Since the electrostatic latent image is formed by the discharge of the photoconductive layer under light, the charge discharge is formed on the charge film layer, so the Carlson electrostatic copying method has the following requirements for the photosensitive drum: has a very high dark resistivity. This kind of photosensitive drum in the case of no light, the surface once the existence of electricity, can save these charges for a long time; and in the case of light, the photosensitive drum resistivity should be quickly reduced, that is, So that the drum surface charge quickly released and disappeared. The photosensitive drum used in the Calson electrostatic photocopying method is mainly composed ...

Measuring the flow of water meters. Most of the cumulative flow of water measurements. Generally divided into volumetric water meter and speed water meter two categories. The accuracy of the former is higher than the latter, but the water quality requirements, water containing impurities easily blocked. Record the water consumption of the instrument, installed in the water pipe, when the user when the water, the table pointer or word wheel rotation pointed out the amount of water. Prepaid water meter The prepaid water meter is applicable to the management system under the principle of "first paid water". Some areas of our country water fee is difficult to pay bad debts, the use of prepaid water meter completely changed the meter reading and water consumption of the settlement, to avoid intensifying the contradictions, while improving the technical content of the water meter products, some water companies and Property management companies welcome this product. Prepaid wat...

Conference chair, also known as the guest chair, as the name suggests is that people during the meeting or meeting with a kind of furniture, can be divided into solid wood, wood, steel and wood, and plastic. 1, choose a comfortable meeting chair is vital. When you buy, you can sit down and feel the back of the chair is soft and hard moderate, the back of the curve is consistent with the curvature of the human spine, fully support the back, waist can reduce the back of the heavy pressure load, to ensure the correct sitting; Whether it is wide and solid, comprehensive support, both to reduce the body to sit down by the impact of the weight generated by the human body, but also to ease the long-term hearing when the buttocks bear the pressure, relaxation of physical and mental, improve work efficiency. 2, in addition to choose its style, color, comfort, but also pay attention to origin, the structure of the solid and sponge, leather quality. 3, comfortable, and can sit for a long ti...

Executive chair fabric leather, leather (PU leather), linen cloth or mesh fabric. Executive chair with a strong permeability, good resilience, tension is great, not easy to change, not aging, according to the body sitting, in line with the advantages of ergonomic. The chair is comfortable, stylish and well designed. It is the best choice for office space managers, senior executives, supervisors and executives, office areas, staff areas and families. Executive chair is one of the many series of office furniture, the most common one is the leather executive chair, the choice of imports of the first layer of skin, high-quality dual-function chassis, mahogany chair, lined with iron frame; Back seat, the central tilt function; and the choice of custom high-strength hexagon screws, plus coated space dedicated dispensing, double seat stability, not easy to roll, high density sponge; pressure lift adjustment, the use of advanced anthropology Design, natural texture is strong, so the daily o...

Locks are closed appliances, which includes locks, keys and accessories, generally interpreted as "must be able to use the key to get rid of the seal", now, in addition to the key to open the lock, you can also use light, electricity, Magnetic, sound and fingerprint instructions open. Lock is not only protective equipment, but also has a "management" and "decoration" role. There is also a ritual in international exchanges, with a symbolic "key" as a representation of friendship. Lock culture China's lock was born for thousands of years, Yangshao cultural sites found a wooden lock, the Western Zhou Dynasty appeared bronze lock, to the Eastern Han Dynasty has been widely produced, the use of metal locks , until the twentieth century, the mid-50s, China's ancient lock out of the stage of history. value China ancient lock has not only still practical value, but also become a valuable historical seal, it reflects from one side of the woo...

The trolley is a man pushing, pulling the vehicle, it is the ancestor of all the vehicles. Although the trolley material handling technology continues to develop, but the trolley is still used as an indispensable handling tool so far. The trolley is widely used in production and life because it is cheap, easy to maintain, easy to operate, light weight, can work in the motor vehicle inconvenient to use, in the short distance handling lighter items is very convenient. The trolley has rounds, two rounds, three rounds and four rounds. The wheelbarrow can travel in a narrow springboard, bridge and trail, and can be turned in situ and dumped. Commonly used two-wheeled vehicles are hand-rolled trucks (also known as tiger cars), shelves and transport bulk materials, such as dump trucks. One of the three trolleys, there are two rotary casters in the four-wheeler that can be rotated around the vertical axis. This rotary casters in operation with the direction of movement of the vehicle changes...

Portable eyewash for non-fixed water or need to change the working environment often can be divided into ordinary Type portable eyewash and pressure-type portable eyewash. Mobile eyewash completely solve the problem of space, zero space storage is the biggest feature of the product. It has the following advantages: Able to provide timely professional protection, fast and convenient. No installation requirements, according to the needs of the site to install or direct use. Leave plenty of space at the outlet hole to rinse your eyes and face, and to assist you with flushing. Pressure-type skin care eyewash, non-toxic polyethylene container with a pressure regulator valve flow stability, plus pure water 5 liters, every 90 days should change the pure water and gas, plus gas by pushing about 50 times 2.5Mpa. For continuous water for 15 minutes. The composition of eyewash Eyebrows: Sprinklers for cleaning the eye and face. Eye wash head Dust cover: Dustproof device for protectio...

The light-emitting film can absorb light in the light environment and light in the no light environment, commonly used with fire, lighting. A light-emitting film which absorbs light energy in a light-emitting environment and emits light in a matte environment, and has a soft, light-colored base layer provided with a light-emitting layer having light-transmitting properties, Layer with a layer of transparent outer membrane layer, the back of the bottom with a sticker layer, stickers attached to the detachment of paper, the utility model using polymer materials as a substrate by a special process from the processing of the film The invention has the advantages of high luminous brightness, high luminous time and excellent weather resistance. The product is non-toxic and has no radiation. The utility model is mainly applied to low emergency lighting, fire safety sign and general guidance and identification. The principle of luminescence of the luminescent film: the alkaline earth alum...

Mold, is a specific form of a certain way through the material molding of an industrial products, but also to produce a certain shape and size requirements of industrial products and parts of a production tool. Large to the aircraft, cars, small to the cup, nails, almost all of the industrial products must rely on mold molding. The high precision, high consistency and high productivity of mold parts are unmatched by any other processing method. Mold to a large extent determine the quality of products, benefits and new product development capabilities. So the mold has "the mother of industry," the honorary title. The use of custom solutions to develop continuous die mold can achieve the best results. With Pro / ENGINEER continuous die software, easy-to-use guides guide the user through automatic strip layout definitions, punch mold creation, and placement and modification of mold components. Documents, gap cuts and bores are automatically created, allowing the mold designe...

The main structure of hydraulic cold press Mainly by: hydraulic system, electrical control system, pressure plate and body composition. Hydraulic system : composed of cylinder, fuel tank, oil pump, oil pump motor, control valve block and pressure gauge. The tank is filled with oil, which is pumped by the oil pump to drive the pump oil. The oil is sent to the cylinder by connecting the tubing to make the cylinder work. The relief valve can make the press in the extrusion process to produce back pressure, play a smooth role, the electromagnetic ball. The valve is used to maintain the pressure set by the system, and the pressure gauge is used to show the pressure. Electrical control system: mainly by the main circuit and control circuit, the circuit using automatic circuit breakers, fuses, AC contactor on the press motor, solenoid valve, such as overload, short circuit, loss of pressure and undervoltage protection. Platen balancing mechanism: mainly by the balance lifting rack, lift...

Plastic sheet is made of plastic as raw materials. High practicality. Plastic sheet production line is a kind of plastic machinery. Sheet machine, sheet production line, sheet equipment, sheet extruder. Method of operation 1.PVC plastic sheet production line preheating: This is the boot before the mold heat action, need to preheat to mold heat. 2. Clamping: opening and closing mold reasonable adjustment, is conducive to improving product stripping and product feed effect. 3.PVC plastic sheet production line preheating: steam into the solid mold, the mold preheating, so that the mold is preheated at the same time, will remain during the condensate and cold air discharge. Role: to improve the mold temperature, to enhance the apparent product melting degree. 4. Through the heating: to improve the product core, the internal sintering. Penetrate heat consumption, waste steam more serious. 5. Both sides of the heating: to further enhance the heating effect, improve product surface ...

Injection mold is a tool for the production of plastic products; is also given a complete structure of plastic products and precise size of the tool. Injection molding is a processing method used in mass production of complex parts of a shape. Specifically refers to the heat of the plastic from the injection molding machine high-pressure injection into the mold cavity, after cooling and curing, to be molded products. The mold is divided into thermosetting plastic mold and thermoplastic mold. According to the forming process, the mold is divided into plastic mold, blow mold, casting mold, thermoforming mold, hot die (compression mold), injection mold, etc. , In which the hot stamping die can be divided into overflow, semi-overflow, no overflow of three kinds of injection mold to pour the system can be divided into cold runner mold, hot runner mold two; by loading and unloading Can be divided into mobile, fixed two. Although the structure of the mold due to the variety and performan...

Laser cutting is the laser beam emitted from the laser, through the optical system, focusing into a high power density laser beam. The laser beam is irradiated onto the surface of the workpiece so that the workpiece reaches the melting point or boiling point while the high pressure gas coaxial with the beam blows the molten or gasified metal. As the beam and the workpiece relative to the location of the movement, the final material to form a slit, so as to achieve the purpose of cutting. Laser cutting is the use of invisible beam instead of the traditional mechanical knife, with high precision, fast cutting, not limited to cutting pattern restrictions, automatic layout saving materials, incision smooth, low processing costs, will gradually improve or replace the The traditional metal cutting process equipment. Laser cutting speed of the machine, the workpiece is not in contact with the workpiece, in the work will not cause the workpiece surface scratches; laser cutting speed, smooth i...

PVC flooring is a very popular in the world today, a new type of lightweight ground decoration materials, also known as "light body material." Is a popular in Europe and the United States and Asia, Japan and South Korea popular products, popular in foreign countries, from the early 80s began to enter the Chinese market, so far in the domestic large and medium cities have been generally recognized, the use of very wide, such as family, Schools, office buildings, factories, public places, supermarkets, commercial, and other places. "PVC floor" refers to the use of PVC material produced by the floor. Specifically, polyvinyl chloride and its copolymer resin as the main raw material, adding filler, plasticizer, stabilizer, coloring agent and other accessories, in the continuous sheet on the substrate, the coating process or by rolling, extrusion or extrusion Produced by the process. ⑴ from the structure of the main multi-layer composite and homogeneous through the hea...

Scaffolding refers to the construction site for the workers to operate and solve the vertical and horizontal transport and erected various stents. Common terminology in the construction industry, refers to the construction site used in the external walls, interior decoration or high height can not be directly the construction of the place. Mainly for the construction staff up and down operations or external safety net enclosure and high-altitude installation components, said white is the shelf, scaffolding production materials are: bamboo, wood, steel or synthetic materials. Some projects are also used as scaffolding templates, in addition to the advertising industry, municipal, traffic, roads and bridges, mines and other departments are widely used. Different types of construction use different scaffolding and template stent. Bridge support frame using the bowl buckle scaffolding of the majority, but also the use of door scaffolding. The main structure of the construction of scaff...

Hood, is installed in the photographic lens, digital camera and the front of the camera , blocking harmful light device, is one of the most commonly used photographic accessories. Hood with metal, hard plastic, soft and other materials. Most of the 135 lenses are standard hood, some lenses need to buy another. The hood models for different lenses are different and can not be used interchangeably. Hood for the visible lens is an indispensable attachment! Strictly speaking, the hood is an integral part of the lens optical system. A lens is composed of several or ten pieces of lenses. And each lens will have two reflective surface, a lens there are dozens of reflective surface! The more the reflection surface of the lens imaging the greater the impact! Especially in the backlight or side backlighting, the multiple reflections will interfere with each other to form a halo. The halo will make the picture Hood Colorful (color unsaturation) or flare. Sometimes the picture is like a layer...

Light shelf structure 1, shelf column: made by the equilateral angle of the double hole punching, hole distance to 50mm distance along the straight line, column hole used to hang the board; Light shelf 2, shelf steel plate : adopt a cold-rolled steel plate according to the required size of four sides bending forming. 3, the column and the steel plate through the fast buckle pin and triangular fixed pieces connected and fixed the composition of the shelf. 4, the various parts of the shelf after processing all the grinding after grinding> pickling phosphating> automatic powder electrostatic spraying> drying and other processes after assembly of finished products. To produce the finished product surface smooth, beautiful; layer can be adjusted up and down, easy disassembly. Light shelf features 1, the whole assembly structure, free combination, installation, easy and flexible demolition. 2, shelf material section optimization, a variety of pipe selection, improve the bea...