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Low pressure plastic raw materials in the process of blowing the two sides of the fold, how to deal with?
- Blow up ratio of transverse expansion ratio of the film, is actually on the orientation of the transverse tensile film, tension will have a certain degree of plastic molecules, the blowing ratio is increased, thereby improve the lateral strength of thin films.s
What are the criteria for the classification of plastic materials at injection molding and extrusion?
- In comparison, the lower melt flow rate is applicable to the extrusion grade, and the higher is applicable to the injection molding grade. As to what is low and what is high, there is a difference between the different plastic varieties.s
What is the ash content of PP plastic raw materials?
- PP if a few raw materials mixed with ash, and the color of raw material and color, it is PP powder, the water can not be dissolved. Try, if it is more, and the color is white, it is talcum powder or toner, water or dissolved or muddy waters
How to use all kinds of plastic materials?
- ABS acrylonitrile butadiene styrene copolymerABS acrylonitrile (chemical corrosion resistance, surface hardness of butadiene styrene) (toughness) (good processability, good dyeing weatherability, easy oxidation) with good comprehensive performance, high impact toughness and good mechanical properties, excellent heat resistance, oil resistance and chemical stability, stable size, easy to machine processing, surface plating, good electrical properties.Suitable plastic products: for general structures or wear resistant transmission parts and corrosion protection equipment. Gears, pumps, impellers, bearings, handles, pipes, motors, housings, electronic parts, clocks and watches, water tanks, freezers, refrigerators, housings, stationery, toyss
What raw material (HDPE) made of plastic bags, high transparency, good sense of light master?
- Synthetic resin is the most important component of plastics, and its content in plastics is generally between 40% and 100%. Because of the large amount and the nature of the resin, which often determines the nature of plastics, people often think of resin as a synonym for plastics. For example, PVC resin is mixed with PVC plastic, phenolic resin and phenolic plastics. In fact, resin and plastics are two different concepts. Resin is an unprocessed primitive polymer that is used not only in plastics but also as raw material for paints, adhesives and synthetic fibers. In addition to a very small number of plastic containing 100% of the resin, the vast majority of plastic, in addition to the main component resin, but also need to add other substancess
What are the plastic raw materials for this purpose?
- Plastic classification, composition and characteristics, plastic is a widely used synthetic polymer materials, in our daily life, plastic products abound.s
Raw materials for making plastic bags
- Polyethylene (Polyethylene, PE), referred to as PE. It is a high molecular organic compound which is made up of ethylene. Polyethylene is recognized as the best food for contact with food in the world. Non-toxic, tasteless, odorless, in line with food packaging hygiene standards. Polyethylene film, light and transparent, with moisture-proof, anti - oxygen, acid, alkali, air tightness, heat sealing and other outstanding performance. Known as "plastic flower" laudatory title. It is the most important and most important material in plastic packaging and printing.s
What kind of raw material is plastic hollow board made of?
- Hollow plate can be divided into anti-static hollow board, hollow conductive plate, ordinary hollow board three categories, anti-static hollow board is mainly used in electronic components on the packing, in order to avoid contact with other charged objects, causing parts for electric spark friction. Anti static hollow board is a new kind of plastic hollow board packing material. Antistatic hollow board mainly replaces ideal environmental protection material, such as corrugated board, wood board and metal plate.s
How do you unfreeze pipes
- Do not use open-flame devices such as a blowtorch or propane heater. This is not only a serious fire danger, but it may cause excessive amounts of steam to build up in the pipe and...
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...
How to protect pipes from freezing
- 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 to do when pipes freeze
- Shut off the water immediately. Don't attempt to thaw frozen pipes unless the water is shut off. Freezing can often cause unseen cracks in pipes or joints.Apply heat to the fro...
How to thaw pipes
- The best way is to first open all the faucets to release any pressure in the lines. If you can get to it; turn off the valve before the problem pipe you want to thaw. If the pipe h...