Injection molding silicone rubber foaming hi liquid silicone rubber (LSR) leh foaming agent leh, heating leh pressurizing hnua a hun khata mold-a porous expanded product siam a ni a, a kalphung bulpui ber chu hetiang hi a ni:
Raw material buatsaih leh mixing:
Liquid silicone rubber (LSR) hi base rubber atan hman a ni a, chu chu a tlangpuiin pahnih-component (a/b component) a ni. Liquid silicone gel chu chemical foaming agents (compounds a decompose tlangpui thin compound te chu temperature bik ah a chhe thin) leh a tul ang color pastes leh additives dangte chu chiang takin mix rawh. Mixing process chu a inang tlang tur a ni a, gas hman hmasak loh tur a ni.
Injection molding:
Well-mixed liquid material chu injection molding machine barrel-ah metering pump hmangin a thawn lut a. Machine hian pre-heated mold cavity ah hian liquid material engemaw zat a inject a. Hetih lai hian mold temperature chu foaming agent-a decomposition temperature hnuaiah control a ni tlangpui a, chu chuan mold filling process laiin premature foaming a veng thei a ni.
Foaming leh vulcanization:
Mold cavity a khat chuan mold temperature chu rang takin foaming agent-a decomposition temperature aia sang (a tlangpuiin 130℃leh 180℃inkar ), foaming agent chu a lum chuan a chhe tan a, gas (nitrogen ang chi) a siam chhuak a, chu chuan silica gel matrix chhungah cell te tak te khar tam tak a siam a ni.
Cooling leh demolding:
Vulcanization zawh hnuah mold a lum hun nghak la, chutah chuan mold chu hawng la, product chu chhuah tir rawh.