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This type of dipping part is a protective layer of plastic formed on the surface by immersing the dumbbell (bell piece) in a plastic liquid and then heating it. It is non-toxic and harmless for general use, as long as you don't eat it, it's fine.
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There is no harm, PVC material. The plastic usually dissipates its flavor after 1 week. However, the surface of this dumbbell is easy to scratch, and it is still a good point to use electroplating.
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First of all, dipping is divided into two types: dipping powder and dipping liquid; Dipping liquid can be divided into two categories, one is smooth dipping, and the other is hemp dipping. In these two categories, it can be divided into different hardness, different colors, and different products such as anti-aging, anti-acid and alkali, anti-corrosion and so on can be formulated according to different needs.
Secondly, there are many applications of dipping in production and life: for example, doors and windows, hangers, refrigerator baskets, tool handles, valve wrenches, and even counterweight iron, and many other products can be dipped and processed. The product can improve the sensory grade of the product after dipping processing, and the dipping color is bright, and sometimes it can even be used to distinguish products with different functions; The second is to improve product quality and extend the service life of products; The third is to improve the external image of the production enterprise, when the enterprise product is the best, with the improvement of the product image, corporate image, etc.
It is also a new process similar to spraying, but thicker and more durable than spraying. Ordinary spraying can reach a thickness of 0.00 millimeters, while dipping is at least 0.0 millimeters, which has a certain advantage in thickness, which can make the operator use the impregnated tools more easily. It is strong and has good anti-friction ability.
If it is a liquid impregnated liquid, it can also be prepared with a series of uses such as different hardness, acid and alkali resistance, and corrosion resistance according to needs.
Finally, the method of application is actually very simple: pre-dissolve the flocculant and add it to the inlet pipe. According to the addition ratio of 100ppm-1000ppm, soak for 1-20 hours, and then dry at low temperature and dry;
Precautions: Store in a cool place, effective for a long time.
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Quality index "Dipping Liquid".
Dielectric strength. Tensile strength.
Elongation at break 312%.
How to use: When the steel of high quality or too hard is impregnated, the preheating temperature can not exceed 210 -220 in the corresponding volume, the rising speed of the hopper cannot exceed 60 minutes, and the surface can not be uneven, so as not to encapsulate the air and cause holes; The lowering speed of the hopper should not be higher than 40 revolutions to avoid the occurrence of hanging points; Under the corresponding volume of plasticizing temperature, it is generally 160 -210 per minute, which is completely molded (bright and shining, and the feel is smooth), and the rough surface is cooked without white spots, and the use temperature is 5-15 degrees lower than that of the smooth surface.
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Hello, dipping and spraying are literally understood as one is sprayed on and one is immersed in it to dip plastic: thick, with anti-corrosion and anti-rust, acid and alkali resistance, moisture-proof, insulation, anti-aging, good feel, environmental protection, long life and other characteristics, is the traditional anti-rust paint, galvanizing and other coating products of the update representative surface treatment process.
Spraying: The effect is better than the painting process in terms of mechanical strength, adhesion, corrosion resistance, aging resistance, etc., and the cost is also lower than the painting with the same effect.
The difference between fence dipping and spraying: Generally speaking, the dipping effect is better than spraying, and in recent years, the application of fence dipping has become more and more extensive. It has the characteristics of non-toxic, wear-resistant, light-resistant, colorful and good feel.
In terms of appearance, the outer surface of the sprayed plastic is harder and smoother than that of the dipping plastic. But to make a further distinction, you can make a cut on the surface of the fence mesh with a knife. Looking at the surface thickness, the dipping thickness is larger than the spraying thickness, and the general spraying thickness is only about that.
Thicknesses of 3 mm and above are dipped.
If you don't understand, please continue to ask.
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One is the treatment method after heating, and the other is sprayed directly.
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PVC impregnating liquid is made by mixing polyvinyl chloride (PVC) with a variety of additives and refining it through multiple processes. The dipping products produced by the use of PVC impregnation liquid are colorful, with a beautiful luster like porcelain, strong adhesion, wear resistance, tensile resistance, heat resistance, high insulation, no shrinkage or crack in winter and summer, good hand feel, long service life, safe and reliable, and the performance indicators have reached or even exceeded the level of similar products in Europe, America and Japan, with particularly good protection and decoration effects, and are ideal high-grade plastic materials to replace imported raw materials.
The dipping products produced with PVC dipping liquid have a beautiful luster like porcelain, a smooth feel, a long service life, and a particularly good protection and decorative effect.
PVC impregnated liquid can be divided into: glossy, matte, hemp, transparent and fluorescent series; The level and color can be adjusted according to different requirements.
PVC impregnated liquid can be widely used in more than 100 kinds of products such as hardware tool handles, handles, wire hangers, hooks, electrical insulation materials, soft rubber sleeves, valve handles, sports and fitness equipment, handicrafts, automobile (motorcycle) anti-theft lock sheaths, etc., covering thickness.
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PVC paste resin + stabilizer + plasticizer + other additives can be used.
It should be plasticized in the oven, about 150 degrees, and the temperature can be shorter when the temperature is high.
If chloroacetic resin is used, the plasticizing temperature can be lower.
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Vacuum forming, known as blistering, is a plastic processing process, the main principle is to heat the flattened plastic hard sheet and soften it, use vacuum adsorption on the surface of the mold, and form it after cooling. It is mainly divided into two categories: thick film blister and thin sheet blister. It is widely used in automotive accessories, lighting, advertising, decoration, large mechanical shells, displays, airspace, major appliances, sanitary ware and other industries.
Thermoplastic injection molding is a method in which the plastic material is melted and then injected into the membrane cavity. Once the molten plastic enters the mold, it is cooled and molded into a certain shape according to the mold cavity. The common products are mainly as follows:
Computer case shells, connectors, mobile phone cases, keyboards, mice, stereos, etc.
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Dipping is a plastic coating process, that is, the plastic is coated on the substrate (generally metal), such as: the hanger for drying clothes, the handle of pliers, the rubber sleeve on the scissors, various handrails, etc. According to whether heating is required, it can be divided into hot-dip and cold-dip plastics, and according to the raw materials of dipping plastics, it can be divided into liquid dipping and powder dipping.
Dipping is to evenly spray plastic powder on the metal to form a plastic film by heating the metal, or heating the impregnating liquid into the metal parts to cool the plastic to coat the metal surface. This process is widely used because it does not require molds, has low processing costs, is easy to form, and can process various shapes.
1. Polyethylene thermoplastic powder coating, also known as polyethylene powder resin coating, is an anti-corrosion powder coating produced by high-pressure polyethylene (LDPE) as the base material, adding a variety of functional additives and color preparation, and the dip coating layer has excellent chemical resistance, anti-aging, impact resistance, bending resistance, acid resistance, salt spray corrosion resistance, and has good surface decoration properties. 2. Conventional construction conditions: 1. The workpiece is derusted and degreased, and heated to 350 50 °C (the specific heating temperature depends on the size of the heat capacity of the workpiece, which is determined by test).
2. Immerse the workpiece in the fluidized bed for 10-12 seconds, heat it to 150°C-230°C, take out the surface leveling, and finally cool it. There is also a one-time molding powder, which does not require a fluidized bed. Third, the main uses:
It is widely used in highways, railways, parks, courtyards and other guardrails, bicycle baskets, bookshelves, hangers, and refrigerator grille surface coating. Fourth, the characteristics: the drape layer is thicker, has a strong impact resistance, and the protection period is also longer, Technical parameters:
Fineness: 50 mesh-70 mesh Density: grams cubic centimeters.
Some of the equipment in the park is for visitors to play.
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