Paip HDPE Dapat Meningkatkan Aliran Meleleh

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!

Penyelesaian:

1, tambahkan pembantu: seperti aditif silikon organik (aditif plastik silikon) atau aditif polimer Fu Fu (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, choose the rest assured HDPE pipe first to determine the appropriate material. In the past, the pipes used for water supply were mainly cast iron pipes. Outside the main sand cast iron pipe, indoor use of galvanized cast iron pipe, which can be divided into cold (electric) galvanized and hot galvanized two. Galvanized pipe as a water pipe, the use of a few years later, the tube produces a lot of rust, the outflow of yellow water not only pollution sanitary ware, and mixed with non-smooth wall breeding bacteria, rust caused by high levels of heavy metals in water, serious harm to human health. More importantly, the performance of such a superior HDPE pipe, the price is not expensive.

HDPE adalah poliolefin termoplastik yang dihasilkan oleh kopolimerisasi etilena. Walaupun HDPE diperkenalkan pada tahun 1956, tetapi plastik ini belum mencapai tahap matang. Bahan biasa ini juga terus mengembangkan penggunaan dan pasaran barunya. Resin termoplastik. Penampilan HDPE yang asli berwarna putih susu, pada bahagian yang sedikit melintang adalah tahap lut tertentu. PE mempunyai ketahanan yang sangat baik terhadap sebahagian besar ciri kehidupan dan bahan kimia industri. Jenis bahan kimia tertentu boleh menghasilkan kakisan kimia, seperti pengoksidaan korosif (asid nitrik pekat), hidrokarbon aromatik (xilena) dan hidrokarbon halogenasi (karbon tetraklorida). Polimer tidak bersifat hygroscopic dan mempunyai ketahanan wap air yang baik

PE boleh dihasilkan dengan pelbagai kaedah pemprosesan yang berbeza. Termasuk penyemperitan seperti penyemperitan lembaran, penyemperitan filem, penyemperitan paip atau profil, pengacuan tiupan, pengacuan suntikan dan pembuatan rotomoulding.

Paip HDPE adalah paip keluli tradisional, produk penggantian paip air minuman PVC.

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.