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How many years will it take for a plastic bag to rot?
- Biodegradable plastic bags are not automatically degraded under any conditions. According to reports, biodegradable plastic bags still contain plastic ingredients, only biodegradable plastic bags are buried in the ground, at a certain time and temperature can be degraded.s
What materials do you use for plastic moulds?
- Can ask. So, many developed countries have formed a wide range of plastic mold steel series. Including carbon structural steel, carburizing type plastic mould steel, pre hardened plastic mould steel, aging hardening plastic mould steel, corrosion resistant plastic die steel, free cutting plastic die steel, hardened plastic die steel, maraging steel and plastic mould steel with mirror polishing.s
What harm does plastic particles do to the body in the factory?
- Harm has the following aspects:1. dust is harmful to the lungs.2., a variety of additives will be more or less oxidized decomposition, emit harmful gases.s
What are the main defects of common plastic products?
- Uneven color or discoloration: discoloration of plastic or pigment due to improper distribution of pigments or fillers; uneven color on the surface of plastic products. Uneven color varies with the appearance of the reasons. Near the inlet is mainly uneven distribution of pigments, such as when the whole plastic products uneven color is caused by poor thermal stability of plastic, and the uneven color of the weld site is related to the nature of the pigment.Plastic products are fragile: because of bad plastics, obvious directionality, internal stress and plastic structure is not good, so that the strength of plastic products decreased, brittle, easy to crack (especially in the direction of material flow easier to crack).Bad mold release: because of excessive filling effect, bad mold release performance and other reasons, make plastic products difficult to release or after the release of plastic deformation and rupture, or plastic products residual direction does not meet the design requirements.s
Does high strength polyurethane belong to plastics?
- Rubber and plastic are juxtaposed terms, no one belongs to anyone.s
The working principle of plastic mould
- The material is usually made of plastic mould steel, and the common materials are carbon structural steel, carbon tool steel, alloy tool steel, high speed steel and so on. Injection molding processing usually apply only to thermal plastic products production, with production of injection molding of plastic products is very wide, from the daily necessities of life to all kinds of complicated machinery, electrical appliances, transport and other parts are used injection molding die, it is a kind of processing method is most widely used in the production of plastic productss
How do you deal with the new plastic drinking cups?
- The following measures reduce risk:Don't heat it when using.Clean the kettle without using a dishwasher or a bowl machine.Keep the kettle out of direct sunlight.• before using for the first time, rinse with baking soda and warm water and dry naturally at room temperature. Because bisphenol A will be released more often for the first time and for long term use.• if the container has any falls or breakage, it is recommended to discontinue use, because it is easy to trap bacteria if there are fine pits on the surface of the plastic.s
How can the strength and toughness of plastic products be tested simply?
- According to the chemical composition of different plastics, the plastic reinforcing agent can improve the strength of the plastics by corresponding chemical action. Mainly used in a variety of modified plastics (including glass fiber reinforced, flame retardant, halogen free flame retardant, mineral filling, etc.) and common (including recycled) plastic. Different types of plastics are suitable for reinforcing agent, modified PP, PE, ABS, HIPS, PBT, PA, PC/ABS and other plastic varieties, in the use of a small amount of conditions, can significantly improve the mechanical strength and impact strength of plastics and plastic products. Suitable for all kinds of plastic molding methods and all kinds of plastic products. Ma'anshan Keli chemical technology development and production company.s
Frozen pipes what to do
- If the supply line of pipes are frozen, you can flush the toilet once and use the water already stored inside the tank. The frozen pipe prevents fresh water from flowing into the t...
What is rubber used for
- The use of rubber is widespread, ranging from household to industrial products, entering the production stream at the intermediate stage or as final products. Tires and tubes are t...
How to avoid frozen pipes
- Apply electrically powered heat tape; this will ensure protection against frozen pipes in the coldest weather as long as the utilities are on. Apply the tape in a spiral pattern fo...
What is rubber banding
- Rubber banding of hydraulic and pneumatic drive system is the most widely used material. Rubber banding has excellent heat, cold, ozone resistance,and have the resistance to atmosp...
What to do when your pipes freeze
- “Frigid temperatures can lead to frozen water pipes inside of the home and costly plumbing repairs, while substantial amounts of blowing and drifting snow can impede access to fi...