what is powder coating reciprocator?

Reciprocator is used as the automatic painting lifter.The reciprocator can carry automatic powder spray guns working smoothly.

powder coating reciprocator

The reciprocator is used for smooth movements of guns for application of liquid paintor powder coating at various speeds and stroke length to suit conveyor speed and jig height respectively.The spraying guns are mounted on an arm extended from a carriage. It is programmed to move in required stroke lengths and speeds depending on object height for up and down movements of guns and speed of conveyors.The PLC based smart control and keypad enables you to punch in user-friendly parameters like stroke length and speed can be viewed on LCD display, especially the top dead point and bottom dead point can be easily set and remembered online.

Advantages:
1). Easily Adjustable Stroke Length and Speed to Suit Production Needs.
2). Precise Speed and Stroke Length.
3). Production and Quality of Coating Increased Dramatically.
4). Exact Stroke Length Adjustment Reduces Paint / Powder Wastage.
5). Much less Maintenance - Only Cleaning & Lubrication is required periodically.
6). Much less Labor Cost.
7). Electronically Controlled Smooth Reversing Reduces Gun. 

Performance Characteristics Of Powder Coating (part 1)

Powder Coating not only have the good appearance characteristics of powder coating but good performance characteristics.
advanced Durability.
    Recent research and testing shows that specially formulated polyester powders that provide even greater weatherability than achievable in previous years, and it shows greater success in long-term Florida exposure testing. TGIC-based powders are being used on outdoor stadium seating and other exterior applications that were previously susceptible to degradation from ultraviolet rays. Powder with polytetrafluoroethylene (Teflon) additives for increased resistance to abrasion also benefit Light poles, lawn furniture, shopping carts, and shelving.
Electroconductive & Electrodissipative. 
    Electronic components makers sometimes use electroconductive and electrodissipative powder coatings, which provide electrostatic discharge protection of the components, critical during the manufacture, testing and transport of electronic goods. The most common colors for these special powders are black and charcoal, but lighter colors are also available.
Good performance in Heat-Sensitive Substrates. 

nylon coating

    In recent years, ongoing research and development has been devoted to formulating powders that can cure at lower temperatures as low as 200°F, without losing good durability or quality. These powders can be used on temperature-sensitive materials, as well as on massive parts that require enormous amounts of energy with other curing systems. More wood materials such as particle board and fiberboard can now benefit from a powder coated finish. This technology has been used in office furniture, kitchen cabinets, and ready-to-assemble furniture for homeowners in our daily life. In-roads have also been made in perfecting powder coating for hardwoods.
    In addition to successfully penetrating the market for wood products, powder has proven to be an effective finishing choice for other heat sensitive substrates such as some plastic parts and products, using nylon, polycarbonates, polyethylene and other materials. Plastic products now powder coated include office furniture, handles and knobs for major appliances, automotive parts and trim, medical equipment, and seating for buses, trains, and stadiums. The coating is effective in covering imperfections in the plastic molding process.

Powder coating line in our daily life

    powder coating line was not known so much ten years ago, The main area of use powder coating line was known as aluminum,steel door ,machinery,lighting,white goods, automotive, metal furniture,steek shelving,table,chair,door handle,headwall,stand,park&garden furniture,children’s play parks,agricultural tools and equipment,powder panels,bicycle,fence,accessories,panel radiater,frying pan,saucepan,kitchen tool and utensils,etc;however,it is also used in the glass and wood industries. 
     

 Normally, when you paint something, the pigment is dissolved in a solvent. You paint the mixture on, and the solvent evaporates and leaves behind the pigment. For powder coating the pigment is powdered. The part is charged with static electricity and then sprayed with the powder, which sticks to it in a uniform layer. Then the part is baked and the pigment melts into a coating. The advantage of this is first that it's cheaper because you don't waste as much pigment, and also it's better for the environment because you don't have all that solvent going into the atmosphere.
       The process is an efficient and highly effective method of coating a wide variety of consumer products ranging from domestic appliances to garden furniture.

Appearance Characteristics of Powder Coatings

Here is the appearance characteristics of powder coatings including many aspects such as color variety,chrome-like appearances metallics and so on.
Virtually Any Color or Gloss. Color variety is almost limitless these days, with many coating suppliers offering a pallet of off-the-shelf colors as well as custom color match services to better meet the needs of small-volume powder users.There are also tints which can add highlight color to a substrate or base coat, such as a brass look over polished aluminum.
Gloss is ranging from flat to high. Smooth, high gloss coatings can offer high distinctness of image creating an illusion of depth or wet looks. Surface defects or imperfections such as spot-welds, nicks and scratches on a variety of substrates can hided through Matte finishes.
Multi-color. Hammertones or veins give antique or distressed looks created by a black base with metallic pigments of gold, silver or copper contrasting against the black. This weathered look is popular in the furniture and display industries that demand a broad range of multi-color looks including granite, confetti, rusty and weathered appearances.
Clearcoats. Clear powders are often used as an external protective layer on many brass products such as door knobs, hinges, railings, lamps and even plumbing fixtures. There are also powders available that can substitute for chrome and brass plating in certain applications, even matching the high gloss of chrome. Clearcoat primers and powder clearcoats over automotive exterior basecoats are being used on various models of several automakers.
Photoluminescent. Photoluminescent powder coatings are able to absorb the ultraviolet, fluorescent, or incandescent light, and gradually re-emit the light. These are often available in blue, yellow, and green, and are used for road signs, hazard warnings, and markings on trucks, buses, and police cars.
Fluorescent appearance/Pearl-like. Powder coated finishes can now offer an icy or fluorescent appearance or the lustrous look of a pearl that may appear to change color depending on the angle of observation. Bicycles, garden tools, light fixtures, wheel rims and some glass products benefit from this look.
Chrome-like Appearances. As chrome plating becomes more heavily regulated and more expensive, the powder coating industry has tried to develop chrome replacement coatings, to replicate the chrome look for decorative chrome applications, such as wheels and automotive trim.
Metallics. Metallic coatings, using particles of aluminum, mica, copper, or brass, add sparkling highlights which can reproduce the appearance of the base metal and add sparkle to the look of the product. Metallic bonding can physically bond metal flakes to the basecoat powder, bringing greater depth to the look of the product. A variety of metallic finishes have been formulated for indoor and outdoor furniture, exercise equipment, lawn and garden tools, and other products, that can resemble the look of gold, chrome, or brass.
Textures. Textured coatings are often used to hide substrate irregularities which may show with a smooth finish, provide a non-slip surface, or hide fingerprints, while giving a distinctive feel to a product. Appearance varys from the look of fine sandpaper, a pebbly texture, or a rougher look resembling alligator skin.
Wrinkles. Wrinkle finishes are a special class of textures which offer styling variation and a consistent appearance. They exhibit excellent resistance to high wear and weatherability conditions seen with tools, exercise equipment, and shop displays.
Wood and Marble Effects. New finishing processes provide wood-grain and marble effects to aluminum, often used on indoor and outdoor architectural products such as furniture, windows, doors, vents, handles, and fixtures.
Dye Sublimation. The process of transferring three-dimensional images onto parts and products, known as dye sublimation, has been successfully applied to powder coated products. Now a variety of powder coated products made of steel, aluminum, glass, and medium density fiberboard can apply the high-resolution images, designs, and wood-grain looks. Bottles, multi-function knives, motobike frames, and writing utensils benefits from this vibrant new look.

So,we could see that the appearance characteristics of the powder coating are excellent with no doubt.

TO BE AN EAGLE OR TO BE A SNAIL

The goddess of sleep takes good care of me since I entered into the college, making up the neglect when I was in senior high. But last night, I suffered from insomnia again. I think it is not her fault, it is my fault. The question I asked myself thousands times-What kind of person I wanna to be?-occurred in my mind again. I can’t explain why I ask myself this boring question, I just can’t help it.

           The answer I got never same as the last time I got. I begin to wonder whether I know exactly what kind of person I wanna to be. Negative! May be next time I’ll get an incredible answer.

           There are always some people around us seems like eagles who have the wings of background, genetic gifts, good luck and so on helping them flying to the top of pyramid., but I never jealous of these person and never complain about my weakness, for they are not the person I wanna to be. I prefer to be a snail, there are evidences prove that snail also have already climbed to the top of pyramid. May be the analogy between snail and me is not suitable, but the fundamental personalities and spirits are resemblant, which is called continuous endeavoring. Michaelyu(俞敏洪)once said in his speech that “there is no fundamental difference between the landscape of eagles and snails when look from the top of the pyramid.”

           Back to my question, what kind of person I wanna to be ? I think I need not to know what exact job I’ll do, what exact life I’ll lead. What I should do is focusing on which category of person I belong to. There is an old saying“ some were born to great, some achieve greatness, and some just want to make it to payday ”. I think I have got the answer to my question.

           At last ,  I’d like to quote a famous saying ,said Jobs in his graduation of Stanford ,to finish my writing “keep looking ,never settle;  stay hungry，stay foolish!”

types of powder coating

    There are two types of powder coatings—thermoplastic and thermosetting. When we apply thermoplastic powder coating ,it melts and flows when heat is applied but continues to have the same chemical composition after it cools and solidifies. So thermoplastic powders have excellent chemical resistance, flexibility and toughness and other characterristics . They are applied mainly by the fluidized bed application technique, in which heated parts are dipped into a vat where the powder is fluidized by air and are used in many thick film applications.

    Thermosetting powder coatings are based on lower molecular weight solid resins which melt when exposed to heat. After they flow into a uniform thin layer, however, they chemically cross-link within themselves or with other reactive components to form a reaction materials of much higher molecular weight,which are heat stable and, unlike the thermoplastic products after curing, will not soften back to the liquid phase when heated. Thermosetting powders are derived from three generic types of resins:acrylic , polyester and epoxy. From these resin types, several coating systems are derived. Resins used in thermosetting powders can be ground into fine particles necessary for spray application and a thin film finish. Most of the advanced technology in recent years have been with thermosetting powders.