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HDPE Pipe Can Improve The Melt Flow

2018-11-15

HDPE Pipe flower pattern causes: because the melt flow in the cylinder, the cylinder wall and the internal flow rate between the difference, when leaving the die, the whole melt and no resistance, the gap between the two becomes zero. It is the relative movement of the layers of the change, causing the mold at the melt flow of intense oscillation, leading to the occurrence of such phenomena!

Решение:

1, add auxiliaries: like organic silicone additives (silicone plastic additives) or Fu Fu polymer additives (PPA).

2, the appropriate increase in temperature can also improve the melt flow!

Squeeze HDPE pipe, and sometimes because of temperature, and sometimes because of the type of raw material problems and more or less patterns, but sometimes it is to increase the temperature, change the plastic model or how much. There have been tested on the membrane head of the air ring overhead, or that elevation.

3, сначала выберите трубку из HDPE, чтобы убедиться в правильности выбора материала. В прошлом трубы, используемые для водоснабжения, были в основном чугунными трубами. Снаружи основной песчано-чугунной трубы, внутри помещений используется оцинкованная чугунная труба, которую можно разделить на холодную (электрическую) оцинкованную и горячую оцинкованную на две. Оцинкованная труба в качестве водопровода, использование несколько лет спустя, труба производит много ржавчины, утечка желтой воды не только загрязнение сантехники, а также смешивается с негладкой стенкой размножающихся бактерий, ржавчины, вызванной высоким уровнем тяжелые металлы в воде, серьезный вред здоровью человека. Что еще более важно, производительность такой трубы HDPE выше, цена не дорогая.

HDPE is a thermoplastic polyolefin produced by copolymerization of ethylene. Although HDPE was introduced in 1956, but this plastic has not yet reached a mature level. This common material is also constantly developing its new uses and markets. The thermoplastic resin. The appearance of the original HDPE was milky white, in a slight cross-section was a certain degree of translucent. PE has excellent resistance to most of the characteristics of life and industrial chemicals. Certain types of chemicals can produce chemical corrosion, such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene) and halogenated hydrocarbons (carbon tetrachloride). The polymer is non-hygroscopic and has good water vapor resistance

PE can be manufactured with a wide range of different processing methods. Including extrusion such as sheet extrusion, film extrusion, pipe or profile extrusion, blow molding, injection molding and rotomoulding.

Труба HDPE - традиционная стальная труба, продукты замены трубы питьевой воды ПВХ.

HDPE pipe must bear a certain pressure, usually to use a large molecular weight, mechanical properties of PE resin, such as HDPE resin. LDPE resin has low tensile strength, poor pressure resistance, poor rigidity, poor dimensional stability during molding, and difficulty in connection, and is not suitable as a material for water supply pressure pipes. However, due to its higher health indicators, LDPE, especially LLDPE resin has become a common material for the production of drinking water pipes. LDPE, LLDPE resin melt viscosity is small, good mobility, easy processing, and thus its melt index selection range is also wide, usually MI in the 0.3-3g / 10min between.