Printed Circuits Board introduction
2012-01-27 by Packing Machine
Printed Circuits Board
PCB Design is a circuit diagram as the basis, realization circuit designers need to function. Printed circuit board designmainly refers to the layout design, need to consider the external connection layout. The optimization of the layout of the internal electronic components. Metal wiring and the via hole layout optimization. Electromagnetic protection. A variety of factors such as heat dissipation. Good design can save production costs, achieve good performance of the circuit and radiating performance. Simple layout design can be used to achieve manually, complex layout design by computer aided design ( CAD ) to achieve.
Extruder Machine according to the types of the continuous extrusion and non continuous extrusion. Plastic extrusion machineand plastic machinery a. According to the direction of the material extruding machine head and the central line of the screwangle, will head into the oblique head ( angle between 120o ) and right angle head. Head of the housing is bolted to the body,head within the mold with a mold seat, and the nut is fixed on the head into the line port, the mold core seat is set in front of the core, core and the core base provided with a hole in the center, used by the core wire.
Printed Circuits Board, also known as printed circuit boards, electronic components electrical connection provider. Its development has 100 years of history; its design is the layout design; the circuit board is the main advantage of greatly reducing wiring and assembly error, improve the automation level and production efficiency.
Tags: Extruder Machine, PCB design, Printed Circuits Board
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China’s top ten primer brand
2012-01-26 by Packing Machine
China’s top ten primer brand
Fenlanfenlin paint feelings ( Coatings Group, the Nordic brand, imported from Finland, color master).
U.S. Exxon paint aekson (China’s top ten primer brand).3A green paint (China Famous Brand, Top Ten quality paint brands, paint the top ten brands). Shenzhou paint sunzo (God Island Group World brand, paint the top ten brands, China free products, the United Nations suppliers). Black monk Blackfiar (UK imported, paint the top ten brands, British Thor (Group) Co., Ltd.). Love Liz paint als (China Famous Brand, a world brand, paint, paint the top ten brands, architectural coatings experts). King spent bwh (China Famous Brand, Chinese Famous Brand, National Inspection-free, ten paint brand,).
Dulux Dulux (ICI Group, the British brand in the world, brands / brands,Ceramic Coating the top ten brands). Nippon Nippon (China Famous Brand, Japanese brands, top ten brand paints and coatings). Resources Huarun (China Famous Brand, China brand names, brands / brands, top ten paint brand). Mei Tu Shi Maydos (Guangdong Shi Mei Tu Chemical Group, the top ten brand paint, Guangdong Province). Carpoly Carpoly (China Famous Brand, China brand names, brands / brands, top ten paint brand). Jia Lishi paint Calusy (China’s top ten paint brand, Li Bingbing endorsement brand).
Bauhinia Bauhinia (Chinese famous brand, top ten brand paint and coatings, in 1982, Hong Kong). Great Treasure paint Taiho (ten brand paint, Guangdong famous brand, famous brand in Asia). Giraffe Giraffe (China Paint brand, top ten brand paint, Guangdong Province famous brand). Three trees Skshu (China Famous Brand, China brand names, brands / brands, top ten paint brand). Daughter paint panpanpaint (China Famous Brand, Chinese Famous Brand, China’s top ten Spray Paint brand). Qi Rui QiRui (China Famous Brand, Chinese Famous Brand, Tianjin famous brand). In Kang Taibo ZhongKang (China Famous Brand, Chinese Famous Brand, Tianjin famous brand). U.S. strong lacquer Qiangsonqi (U.S. Johnson Chemical Co., Ltd., the world’s top ten paint brand, brand-name products in Guangdong).
Tags: Ceramic Coating, primer, Spray Paint
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Handling of Diisopropanolamine
2012-01-25 by Packing Machine
Handling and storage of Diisopropanolamine
Handling Diisopropanolamine Precautions: closed operation. Operator must go through specialized training, strict adherence to rules. Proposed operators wear self-absorption filter respirators, wearing chemical protective safety glasses, wear rubber acid suit, wearing anti-chemical gloves. Away from fire, heat, workplace smoking. Use explosion-proof ventilation systems and equipment. To avoid dust. Avoid contact with oxidizing agents, acids contact. Handling should care, and packaging and containers to prevent damage. Corresponding with the variety and quantity of fire-fighting equipment and emergency equipment leakage. Empty containers may be harmful residues.Storage: Store in a cool, ventilated warehouse. Away from fire and heat. Sealed packaging. With oxidants, acids stored separately sealed. Corresponding with the variety and quantity of fire-fighting equipment. Storage areas should be equipped with suitable host material spill.
Exterior Car Care is for all parts required for maintenance of conditions of different materials using different types of automotive beauty care products and construction techniques, maintenance of the car for a new care. “Auto Beauty” concept first appeared in China in 1994, and now this concept has been generally accepted by the public, and the car beauty center has been all over the country.
Distilled Monoglycerides is a natural plant oils as raw materials monostearate, referred to as monoglycerides, purified by molecular distillation technology for more than 90% active ingredient, also known as molecular distilled monoglycerides, is the most a wide range of food additives, safe for food, medicine, plastic and other production and processing, accounting for more than half of the amount of emulsifier market. Distilled monoglycerides, the emulsion has a higher content of monostearate, removed to reduce the efficiency of impurities, so the emulsifying capacity than the crude ester increased 3-4 times, adding 0.05 to 2% of the general will be able to food processing needs, with the color white, odorless, stable performance characteristics.
Tags: Diisopropanolamine, Distilled Monoglycerides, Exterior Car Care
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Modern Industry Coating introduction
2012-01-24 by Packing Machine
Modern Industry Coating introduction
Modern Industry Coating is gradually becoming a kind of versatility of engineering materials, chemical industry is an important industry. Paint, in general, is to be coated in the coating surface and to form a continuous film firmly attached to the material. Paint with iron oxide or resin and other raw materials for decoration and protection of the coating materials.
The origin of the paint is inconclusive. 1500 BC, the caves in France and Spain, the paint has been used in painting and decorating. 6000 BC, China has used inorganic compounds and organic pigments for the paint to improve firing. 1500 BC, Egyptians used dyes such as indigo and madder manufacturing blue and red pigments, but this painting is far from perfect. The 18th century, because of the linseed oil and the development and utilization of zinc oxide, so that the Spray Paint industry to develop rapidly. 20th century painting technology have been significant developments, there has been greater adhesion, higher gloss, flame retardant, corrosion resistance and high thermal stability of various colors of paint.
Outside the interior paint is a solid can cover the surface, the protective, decorative, logos and other special uses of the chemical mixture coating. China coatings industry authoritative “coating process” is defined as the book: “The coating is a material that can be coated with different construction techniques in the object surface, the formation of strong adhesion, with a certain intensity, continuous solid-state thin film so formed film known as film, also known as paint or coating. “polymer materials are organic chemicals, polymers are formed by coating type. Passage in accordance with the modern classification of chemical products, paints are fine chemical products.
Tags: Industry Coating, interior paint, Spray Paint
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The use of FRP
2012-01-23 by Packing Machine
The use of FRP
FRP products widely used, can become part of an alternative ideal for metal and plastic materials, metals can not only save energy consumption, reducing the plastic pollution is not caused by degradation. In the vast rural areas, fiberglass on, the rain made the ride, with performance comparable to the plastic, the service life increased significantly.
Spray Paint is a synthetic lacquer paint with lead nitrate cellulose, resins, pigments, solvents, etc. are made. Usually evenly spray gun at the surface, water resistance, oil, done quickly, for paint cars, planes, wood, leather and so on. The substance is toxic, the body has a certain impact, a different brand of paint because different ingredients have different toxicity. Should be used with particular attention to safety, avoid inhalation and skin contact.
Outside the interior paint is paint, latex paint is often said, is the home decoration decorating material for one of the main wall. In the basic renovation costs account for a considerable proportion. In fact, according to insiders, no matter what the concept of wall paint, consumers are firmly grasp as long as three areas: environmental indicators, life, hiding power, you can spend a lot less money wasted, really only choose not vote on the expensive.
Tags: FRP Products, Outside the interior paint, Spray Paint
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Film blowing machine temperature indicator
2012-01-22 by Packing Machine
Film blowing machine temperature indicator and control methods
Temperature indicators and Film Blowing Machine control method: According to the theory of the plastic melt, blown film extruder screw were divided into three: the feed zone, melting, homogenizing section. The end of the feeding section, into the melting begins, according to melting theory, it should be the temperature of the viscous flow temperature. Viscous flow of blown film resin temperatures were PP :164-175 degrees Celsius, PE :105-135 degrees Celsius, PA :195-210 degrees Celsius.For the extrusion temperature control point is: different kinds of resin, blown film process at different temperatures; the same kinds of resin, and melt index of the different models, different blown film process temperature, the mobility index of large, low temperature.
Feed zone entry in the Plastic Film Blowing Machine , hoping the temperature low, to prevent the resin inlet viscous flow blocked, the other, continue to compress the resin in the feed zone, the air feed to the mouth backwards from the discharge. Depending on the device structure is different, though not for heating feeding mouth, but the heat transfer through the barrel, feed port temperature of about 50-90 degrees. Thus, to determine the feed zone temperature. Entrance to 50-90 degrees, melting point or the end of the viscous flow is equal to the temperature, the temperature can be set on the segment geometric linear warming. Melting begins, the temperature reaches the temperature to melt viscous flow, for crystalline resin, viscous flow temperature equal to the melting temperature. Then continue to compress and increase the melting layer, the temperature rising need in order to make the resin molecular chain length range, the different thermal motion energy of the polymer melt has both, and thus to the melting temperature of the end of the establishment, you can set in this section on other parts of the linear warming.
Segments are oriented in the Film blowing machine, mainly re-melt homogenization and quantitative output of the melt temperature at constant pressure, the section maintains a constant temperature, or melting end temperature is slightly higher (2-5 degrees). For blown film, the temperature required by the lower section on things, but it is not lower than the temperature of viscous flow, easy to put film and normal film blowing. When the melt from the die exit out to have a certain viscosity, and will not rupture, film collapse phenomenon. In general, it is lower than both the end of the segment is about 10-30 degrees, all of the segments from the mouth to feel the temperature can also be seen as arithmetic temperature drop.
Tags: blown film extruder, Film Blowing Machine, Plastic Film Blowing Machine
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Size standard USB 3.0 interface
2012-01-21 by Packing Machine
Size standard USB 3.0 interface
While new USB implementing organizations (USB Implementers Forum, USB-IF) has started to take over and operate the specification, published a detailed technical documentation for hardware manufacturers to the industry and so to develop products related to USB3.0 Flash Drive.USB 3.0 is the latest USB specification, which is sponsored by Intel and other large companies. Currently, USB 2.0 has been generally recognized by the PC makers, interfaces have become an essential interface to hardware vendors, take a look at the family used to clear the board.
Long bar area of the heat. Such as: length 400 * 4mm wide use of thermal grease such as size (or thermal paste) easy to apply to the products. Uneven, the use of thermal conductivity can not be filled, they should be used to heat Thermal Conductive Silicone Pads. Small size need to heat, they should be used to heat thermal silica pieces. Easy to operate, or be required to save labor costs, the thermal conductivity of silicon chip pad is the preferred material.
About the safety of lithium-ion battery, please friends attention. Lithium-ion battery in the charging process is prone to short-circuit condition.Although most of the lithium-ion batteries with protection circuit against short circuit, as well as explosion-proof line. But in many cases, this circuit in all cases, will not necessarily work. Explosion-proof cable to the role is very limited. The chemical properties of lithium is very lively, very easy to burn, when the Lithium battery charge and discharge, the battery continues to heat up inside, resulting in the activation process of gas expansion, the battery internal pressure increased. Pressure reaches a certain level, such as shell have scars that may rupture, causing leakage, fire, or explosion.
Tags: Lithium battery, Thermal Conductive Silicone Pads, USB3.0 Flash Drive
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Electronic component
2012-01-20 by Packing Machine
Electronic component
SSD ( Solid State Drive, IDE Flash Disk ) is composed of a control unit and a storage unit ( FLASH chip ), simply by solid state electronic memory chip array and made of hard disk, hard disk interface specification and the definition, function andmethod of use and the ordinary hard disk of the same, in product shape and size with ordinary hard consistency. The chipoperating temperature range is very wide ( 40 ~ 85 ). Now widely used in military, automotive, industrial control, video monitoring, network monitoring, network terminal, electric power, medical, aviation, navigation equipment and other fields.Although the cost is higher, but is also gradually spread to the DIY market. 2.5 inch SATA interface SSD solid-state hard drive, because the solid state disk technology and traditional hard disk technology is different, so produced many new memory manufacturer. Manufacturers only need to buy a NAND memory, coupled with appropriate control chip, can make the solid hard disk. A new generation of solid-state drive widespread adoption of SATA-2 interface and SATA-3 interface.
Lithium battery ( Li-ion Batteries ) is a lithium cell and development. So in the Li-ion before, first introduced thelithium battery. For example, before the camera with the button battery belongs to the lithium battery. Anode material of lithium battery is manganese dioxide cathode of lithium thionyl chloride. After assembling battery battery voltage, withoutcharging. The battery can be charged, but the cycling performance is not good, in the charge-discharge cycle process, easy to form lithium crystal, causing the internal short circuit of the battery, so under normal circumstances this battery chargingis prohibited.
The EAS Systems mainly consists of three parts: the detector ( Sensor ), a decoder ( Deactivator ) and electronic label (Electronic Label and Tag ). The electronic label is divided into soft and hard soft label label label, low cost, directadhesion in the “hard” commodities, soft label cannot be reused disposable soft; hard tag cost high, but can be reused. Usedclothing soft, easy to penetrate the objects. The decoder for the contactless device, a decoding height, when the cashiercashier or bagging, electronic label and no contact area can be decoded. There will be a decoder and a laser bar code scannerssynthesis together to accomplish a product receiving and decoding equipment, one-time completion, convenient for the work of the cashier, the required and laser bar code supplier matched two, eliminate mutual interference, improve decodingsensitivity. Without decoding the goods from the market, in the past the detector device ( for the door shape ), will trigger an alarm, thereby reminding the cashier, customer and market security staff.
Tags: Electronic Label and Tag, IDE Flash Disk, Lithium battery, SSD
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Chemical Ceramic Coating
2012-01-19 by Packing Machine
Chemical
Ceramic Coating high temperature to over 380 DEG C coating, coating with high temperature resistant resin or of Sheng Weihuahigh temperature inorganic solution, group ingredient is high temperature resistant powder or metal polymer. High temperature insulating coatings, high temperature range of – 80 degrees C, 1800 degrees C, can be directly face the fire insulation,thermal conductivity coefficient is only 0.03W / m.K, can effectively inhibit and shielding infrared heat radiation and heatconduction, heat suppression efficiency can reach about 90%, can inhibit the temperature of heat radiation and heat loss,insulation after curing, pressure, can be processing, direct brushing on the object can be a few mm.
CarboxyMethyl Cellulose, carboxymethyl group is substituted products. According to their molecular weight or replaced, can be completely dissolved or insoluble polymer, which can be used as a weak acid type cation exchange agent, for the separation of neutral or alkaline protein. Carboxymethyl cellulose can be formed with high viscosity of colloidal solution, sticky,,thickening, emulsifying, flow, shaped, water retention, protective colloid, film forming, acid resistance, salt tolerance,suspension and other characteristics, and physiologically innocuous, therefore in the food, medicine, daily chemical, oil,paper, textile, building in areas such as widely used in the production.
HDPE ( High Density Polyethylene, referred to as “HDPE” ), is a high degree of crystallinity, non-polar thermoplastic resin.The original state of HDPE appearance milky white, in the small section is the degree of translucent. PE has good resistance to most living and industrial chemical characteristics. Some kinds of chemicals have a chemical corrosion, such as corrosiveoxidant ( nitric acid ), aromatic hydrocarbon ( xylene ) and halogenated hydrocarbons (CCL ). The polymer moisture and hasgood waterproof steam, can be used for packaging purposes. HDPE has a very good electrical properties, especially thedielectric strength is high, make it very suitable for wire and cable. To high molecular weight grade with excellent impact resistance, at room temperature even in 40F low temperature so.
Tags: CarboxyMethyl Cellulose, Ceramic Coating, HDPE
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Introduction of Printed Circuits Board
2012-01-18 by Packing Machine
Printed Circuits Board
Printed Circuits Board, also known as printed circuit boards, printed circuit boards, referred to as PCB, the English referred to as PCB (printed circuit board) or PWB (printed wiring board), the insulation board to substrate, cut to size, on which at least with a conductive pattern, and fabric with a hole (such as component holes, fastener holes, through holes, etc.), electronic components used in place of the previous device’s chassis, and to achieve the interconnection between electronic components. Because of this board is made use of electronic printing, it is called “printed” circuit board. Used to refer to “PCB” for “printed circuit” is inaccurate, because the PCB is not “printed element” and the only wiring.
Flexible Printed Circuit (Flexible Printed Circuit Board), also known as “soft plate”, the insulating substrate is made of flexible printed circuits, rigid printed circuit board has many advantages not available. For example, it can be freely bent, winding, folding, can be arranged in accordance with any requirements of the spatial layout, and any movement in three-dimensional space and scale to achieve the component assembly and integration of wire connection. FPC can greatly reduce the use of the volume of electronic products, electronic products applied to high-density, small size, high reliability and direction of development. Therefore, FPC in the aerospace, military, mobile communications, portable computers, computer peripherals, PDA, digital camera and other fields or products have been widely used.
Multi-Layer PCB Design is based on circuit picture shows the basis for the circuit designer to achieve the required functionality. Printed circuit board layout design mainly refers to the need to consider the layout of the external connection. Optimize the layout of the internal electronic components. Metal wires and vias to optimize the layout. Electromagnetic protection. Various factors such as heat dissipation. Excellent layout can save the cost of production to achieve a good performance and cooling circuit performance. Simple layout can be achieved by hand, need the help of complex computer-aided layout design (CAD) to achieve.
Tags: Flexible Printed Circuit, Multi-Layer PCB Design, Printed Circuits Board
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