各种塑料材料注塑工艺(快速调机型)（All kinds of plastic material injection molding process (rapid adjustment)）.docVIP

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各种塑料材料注塑工艺(快速调机型)（All kinds of plastic material injection molding process (rapid adjustment)）.doc

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各种塑料材料注塑工艺(快速调机型)（All kinds of plastic material injection molding process (rapid adjustment)）

各种塑料材料注塑工艺(快速调机型)（All kinds of plastic material injection molding process (rapid adjustment)） The raw material temperature. 01.ABS 180-240 02.HIPS 180-220 03.PC+ABS 200-245 04.PA66 260-300 05.PA66+GP 285-320 06.PMMA 200-245 07.PC 280-320 08.PS 180-220 09.POM 165-200 10.PP 180-220 11.PBT 220-280 Two, the exception handling method: A: air lines 1. gate location: A. improve the mold temperature; B. raising the barrel temperature; C. reduces the gate location of fire, shooting pressure; The nozzle of long thin type products, broken a available, with the medium pressure jet nozzle; the two section with slow injection position. Low tone pattern B: lack of material 1. when the formation of material shortage, first check the product dose enough. When the product is a. bone thick parts Queliao, after the mold temperature is too high, bad exhaust form Methods: 1. lower mould temperature 2. at lower pressure rate. B. when the product bone thin parts Queliao, plastic flow is fast enough to form Methods: 1. improve the barrel temperature of 2. to improve the injection pressure rate of fire. When the C. encapsulation products due to lack of material position Methods: 1. improved exhaust 2. shot a low rate of fire 2. when the production of products in the formation of material shortage A. first checks whether the mouth machine leakage, obstruction; B. tube temperature is abnormal; C. mold temperature is changing. C. flower 1. see the material drying temperature is normal; 2. see the barrel temperature is abnormal, the barrel temperature is set too high to compound decomposition; The 3. nozzle aperture is too small, when the injection rubber material decomposition in high speed under the condition. (retreat barrel view block is cottony bubble injection). 2. when the irregular flower appear on the surface of the product, processing rubber when the product appears on the surface of a regular small flower, in the compound without check confirmed abnormal conditions, available machine