Analiza oborin iz PVC matrice

Ningbo Fangli Technology Co., Ltd. je aproizvajalec mehanske opremes skoraj 30-letnimi izkušnjamiplastika oprema za iztiskanje cevi, nova zaščita okolja in novi materiali opremo. Fangli je bil od svoje ustanovitve razvit na podlagi uporabnikov zahteve. Z nenehnim izboljševanjem, neodvisnimi raziskavami in razvojem v jedru tehnologija ter prebava in absorpcija napredne tehnologije in drugo pomeni, razvili smo seLinija za ekstruzijo PVC cevi, Linija za ekstruzijo cevi PP-R, PE linija za ekstruzijo vodovodnih/plinskih cevi, ki so ga priporočali Kitajci Ministrstvo za gradnjo nadomestiti uvožene izdelke. Pridobili smo naslov "Prvorazredne znamke v provinci Zhejiang".

Na matrici iz PVC-U sta dve situaciji cevi: ena je bel ali rumen vosek (olje), ki se pojavi nakocka. Razlog je očitno, kar pomeni, da je preveč maziv z nizkim tališčem in slabimi združljivost s PVC, ki so prosti na površini izdelka, in kdajkockais exported, it is separated from the product to the die to form white or yellowish brown wax (oil). The other is that the longer the "moustache" on the die is, the more complicated the reason is believed that the lack of lubrication in the later stage leads to the insufficient strength of the material melt and the insufficient demoulding effect. When there is too much calcium powder and too little lubricant, the lubricant is too little to lubricate the calcium powder surface, which will also cause whisker like precipitation. The precipitation of the setting sleeve is easy to occur after the use of calcium zinc stabilizer. The reason is complex or people have not yet figured it out, and it is difficult to solve it thoroughly. Whether it is possible to use external lubrication with high efficiency and high melting point as much as possible, and minimize the use of lubricants (including internal and external lubrication) on the premise of meeting processing requirements, meanwhile paying attention to melt strength and demoulding.

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