DI Pipe PE Sleeve

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Specification

1. Product produced according to ISO8180

2. Thiciness 200um, 400um and other thickness is available upon request

3. Black color, other color is available upon request

4. Corbon black content 2-3

5. Puncture Resistance ≥900

6. Breack strength ≥20

7. Breack elongation ≥500

8. Tear resistance ≥20

Usage:

For Ductile iron pipe DN80-DN2000.

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Q:What does "stress hardening" of plastic molding mean?
Plastic stress hardening phenomenon, refers to the plastic molding process, with the orientation of the increase of intermolecular forces increased, causing the polymer viscosity, the polymer showed "hardening" tendency, the deformation tends to be stable and no development. This phenomenon of orientation process becomes "stress hardening"".
Q:When was plastic invented?
Advantage1., most of the plastic corrosion resistance, and not with acid, alkali reaction.2. plastic manufacturing costs low.3. durable, waterproof, light quality.4. easy to Suzhi into different shapes.5. are good insulators.6., plastics can be used in the preparation of fuel oil and fuel gas, which can reduce oil consumption.shortcoming1., the recycling of waste plastics, classification is very difficult, but also uneconomical.2.. Plastics burn easily and produce poisonous gases when they burn. For example, toluene combustion produces a small amount of polystyrene, this substance can cause blindness, vomiting and other symptoms of inhalation, PVC combustion will produce toxic gases, hydrogen chloride in combustion, is a high temperature environment, will lead to plastic decomposition of toxic components, such as benzene etc..3. plastics are made from petroleum refining products, and oil resources are limited.4. plastic buried in the ground for hundreds of years, thousands of years or even tens of thousands of years will not decay.5., the heat resistance of plastic is poor, easy to aging.6. because of the inability of plastics to degrade naturally, it has become the number one enemy of mankind and has led to the tragedy of many animal deaths.
Q:Do all plastic products taste?
Polystyrene (non-toxic and harmless, the most common is the variety of plastic baskets, plastic barrels); phenolic resin (also called bakelite, nonflammable, high-temperature environment does not melt, used to make plug sockets and other electrical products. Most plastics are harmless, toxic and carcinogenic additives containing plastic, in order to improve the properties of various plastic products (plastic, coloring and thermal stability) need to add a variety of other substances, usually indicated in the product. To ensure safety, do not contact food with plastic of unknown material.
Q:What are the raw materials used in the production of plastic products?
Bearing cleaning supplies, plastic containers and bath products currently used in supermarkets and shopping malls in the plastic bag is made of this material, can resist high temperature of 110 DEG C, indicating the food use of plastic bags can be used for holding food. Bearing cleaning supplies, plastic containers and bath products can be repeatedly used carefully after cleaning, but these containers are usually not good cleaning, easy residual cleaning supplies, become a breeding ground for bacteria, it is better not to use circulation cleaning is not thorough so.
Q:Can I put food in a plastic product that has just been soaked in hot water?
The so-called plastic, in fact, it is a kind of synthetic resin, the shape of the natural resin with pine resin similar to, through chemical means of artificial synthesis, and is called plastic.
Q:Can plastics be recycled?
Thermosetting plastics can be divided into two types: formaldehyde, cross-linking and other cross-linking. Another category is thermoplastics, which refer to plastics that have heating, softening, and cooling hardening properties. Most of the plastic used in our daily life falls into this category.
Q:Is there a difference between recycled plastics and new ones?
The properties of waste plastics are reduced in different degrees after regeneration, mainly due to photoaging, oxidation and thermal aging. The extent of performance degradation depends mainly on the number of years spent and the environment. The waste edge, molding processing factory production waste recycling materials, the performance decline is very small, can be used when the new material almost, life is short; the indoor use of recycled products, performance has little change; but in outdoor use, long period, poor environment (effects such as pressure, electric and chemical medium etc.) product performance is poor, even can not recover. Due to the thermal aging in the process of regeneration, the color of the recycled material is changed from shallow to deep. The following describes several commonly used plastic recycling properties change.
Q:Are plastic products resistant to acid and alkali? Is it okay to use plastic products for a long time in the family?
Plastic products are very stable and generally do not decay, but long-term storage of food is bad
Q:Mobile phone shell or other plastic products, the internal screw column thread is injection, or?. After injection processing?
High grade mobile phone, screw hole is in the beer shell, directly on the mold set of beer out. Ordinary mobile phones use a self tapping screw, that is to say, when the beer comes out, it is a light blind hole and has no thread.
Q:How do you deal with the new plastic drinking cups?
Taste to milk: first with detergent to clean, and then poured into the cup two key plastic soup of fresh milk, cover the lid, shake the cup every corner with a touch of milk, about one minute, finally pour milk, the cup is clean. 2, orange peel to flavor method: first wash with detergent, and then put fresh orange peel in, cover, put about 3 to 4 hours, rinse clean. If the above method can remove the smell of plastic cups, and into hot water cup emits strong pungent odor, consider don't drink with this cup, the cup may be plastic material is not good, it might be harmful to health drink, or give it another cup compared to insurance.

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