Material box

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Product Description:

1 , boxes made of a total of polypropylene, polyethylene, synthetic , light weight, long service life.

2 , boxes specially designed size chain to meet is the vast majority of the material.

3 , boxes of high load-bearing design 4-25kg.

4 , boxes easily portable , easy to pick up .

5 , boxes shelves in material use , can be used as drawers.

6 , boxes with special materials, not pollution.

7 , boxes partition plate distinguish smaller space.

8 , boxes bins and separator plate has a card slot.

9 , boxes of partition plate metal handle is optional .


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Q:Advantages and disadvantages of plastics
The thermal conductivity of plastic is very small, about 1/500-1/600 of the metal. The thermal conductivity of foamed plastics is only about 0.02-0.046W/mK, about 1/1500 of metal, 1/40 of cement concrete, and 1/20 of ordinary clay brick. It is an ideal heat insulating material.
Q:Mobile phone shell or other plastic products, the internal screw column thread is injection, or?. After injection processing?
The internal screw column of a mobile phone shell and other products has smaller diameter, and the screw column thread of the utility model is not molded out by injection, but is processed in the late stage.
Q:How can plastics be broken down into harmless substances?
As a new type of plastic material products present situation and harm of white pollution, has the advantages of light weight, waterproof, durable, sophisticated production technology and low cost, is widely used and has increased year by year in the world. The growth rate of plastic packaging materials in the world market is higher than that of other packaging materials, and the average annual growth rate of plastic packaging materials in 1990-1995 years is 8.9%. China is one of the ten largest producers and consumers of plastic products in the world.
Q:What's the advantage of a basin made of plastic?
Plastic basin disadvantages: the burning of plastic will produce toxic gases, such as toluene produced during combustion of polystyrene, the substance amount of inhalation can cause blindness, vomiting and other symptoms, PVC combustion will produce toxic gas hydrogen chloride.
Q:What kind of plastic can touch food?
It is better to wear plastic without color. The color is usually processed and not clean!
Q:What's the difference between cans and plastic bottles?
Carbonated beverage is a beverage product filled with carbon dioxide under certain conditions. It is composed of water, sweetener, acid, essence, perfume, pigment, carbon dioxide and other raw and auxiliary materials. Carbonated drinks cool Jieshu major role played as a hobby, drinks, generally no nutritional value. However, different products have different characteristics, and some do have vitamins, electrolytes and so on.
Q:How can the strength and toughness of plastic products be tested simply?
Testing of universal material testing machine: tensile strength, elongation at break and bending strengthImpact testing: impact strength
Q:How to make plastic products soft?
Scald it in hot water, but it's soft at one time. Now it's getting warmer, so you don't have to worry about it. Because the weather is so warm, the plastic lines are fine and soft! It's comfortable to take!
Q:How to classify waste plastics? Identification methods?
In general, transparent plastic bags, such as common use fresh-keeping bag, belonging to recycled plastic bags, and opaque plastic bags, such as markets with color and black plastic bags, garbage bags, transparency, flexibility is poor, belongs to Unrecyclable plastic bags. The reason is that opaque plastic bags are made from waste plastics and have lost the value of recycling.
Q:Plastic products in the injection process should pay attention to what?
When the material is formed, the molten material contacts the cavity surface and the outer layer is cooled immediately to form a low density solid shell. Because of the poor thermal conductivity of plastic, the inner part of the plastic part is cooled slowly to form a large solid layer with high density. Therefore, the wall thickness, cooling slow, high-density layer thickness is large contraction. In addition, the layout and number of inserts have direct influence on the direction of material flow, the density distribution and the shrinkage resistance. Therefore, the characteristics of plastic parts have great influence on the shrinkage size and direction.

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