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1、Reasonable design of the mould structure, the design of the necessary parting line, running rubber groove and exhaust holes. It is better to use moulds with injection and pressure flow holes for complex products with high qualification rate requirements.
2, the formula design should take into account the characteristics of raw materials, do not use or less use of raw materials with high moisture content, if you must use such materials, you must do the appropriate pretreatment. Develop a suitable refining process to ensure that the rubber through the mixing, can remove the more water.
3、Do a good job of maintenance of vulcanising equipment and moulds, to keep the equipment running normally, moulds clean, running grooves, air holes smooth.
4, the development of a reasonable semi-finished product moulding process, pay attention to the impact of the shape of the charge on the quality of the product, for different products to make different semi-finished product shape size. In addition, semi-finished products coated with a little CA C03 or talcum powder on the surface is also conducive to improving the quality of product appearance.
5、The speed of vulcanising machine should be appropriate, not too fast, and pay attention to several times of pressure reduction and exhaust.
6、Reasonable use of curing temperature.
2, the formula design should take into account the characteristics of raw materials, do not use or less use of raw materials with high moisture content, if you must use such materials, you must do the appropriate pretreatment. Develop a suitable refining process to ensure that the rubber through the mixing, can remove the more water.
3、Do a good job of maintenance of vulcanising equipment and moulds, to keep the equipment running normally, moulds clean, running grooves, air holes smooth.
4, the development of a reasonable semi-finished product moulding process, pay attention to the impact of the shape of the charge on the quality of the product, for different products to make different semi-finished product shape size. In addition, semi-finished products coated with a little CA C03 or talcum powder on the surface is also conducive to improving the quality of product appearance.
5、The speed of vulcanising machine should be appropriate, not too fast, and pay attention to several times of pressure reduction and exhaust.
6、Reasonable use of curing temperature.
