PAD hodiaren lore-eredua honakoa da: zilindroan, zilindroko horman eta barneko fluxuaren arteko desberdintasunaren arteko fluxua isuri delako, hiltzen uzten denean, urtutako guztia eta erresistentziarik gabe, bien arteko tartea zero bihurtzen da. Aldaketaren geruzen mugimendu erlatiboa da, moldea oszilazio bizien koladak eragiten duena, fenomeno horien agerpena eragiten baitu!
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!
Estutu HDPE kanalizazioa, eta batzuetan tenperatura dela eta batzuetan lehengaien arazo eta motatako arazo gehiago edo gutxiago direla eta, baina batzuetan tenperatura handitzea, plastikoaren eredua edo zenbat. Aire-eraztunaren mintzaren buruan probatu da, edo kota hori.
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 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 prozesatzeko metodo ugariekin egin daiteke. Estrusioa barne, hala nola xafla-estrukia, zinema-estrusioa, kanalizazioa edo profil estruketa, kolpe bidezko moldea, injekzioa eta biraketa.
PEAD hodi tradizionala altzairuzko hodi da, PVC edateko uraren hoditeria ordezkatzeko produktuak.
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.