樹脂砂鑄件具有表麵粗糙度小,尺寸精度高,品質好的特點,
樹脂砂生產對模具工藝的要求:
與yu粘zhan土tu砂sha相xiang比bi,樹shu脂zhi砂sha鑄zhu件jian的de外wai觀guan質zhi量liang依yi賴lai於yu模mo具ju的de質zhi量liang,因yin而er樹shu脂zhi砂sha對dui模mo具ju的de質zhi量liang要yao求qiu較jiao高gao。模mo具ju工gong藝yi時shi使shi其qi較jiao好hao的de適shi應ying樹shu脂zhi砂sha造zao型xing的de需xu要yao,主zhu要yao在zai以yi下xia幾ji個ge方fang麵mian:
加工餘量:yinghuahoudeshuzhishazhuxingyoujiaohaodegangduhejiaogaodechicunjingdu,qiebuyibianxing,suoyizaixuanzegongyicanshushi,keyixuanqujiaoxiaodejixiejiagongyuliang,congerjianshaojinshurongyedexiaohaohejixiejiagongdechengben,congerkeyitigaozhujiandechicunjingdu。
拔模斜度:樹shu脂zhi砂sha在zai起qi模mo時shi已yi具ju有you一yi定ding的de硬ying化hua強qiang度du,較jiao小xiao的de退tui讓rang性xing,較jiao大da的de摩mo擦ca力li,若ruo采cai用yong敲qiao擊ji的de方fang法fa起qi模mo,容rong易yi損sun壞huai模mo具ju,同tong時shi樹shu脂zhi砂sha的de可ke修xiu補bu性xing差cha,起qi模mo時shi,若ruo受shou到dao破po壞huai,較jiao難nan修xiu補bu。采cai用yong樹shu脂zhi砂sha造zao型xing時shi,應ying根gen據ju生sheng產chan實shi際ji和he產chan品pin結jie構gou加jia大da模mo具ju的de拔ba模mo斜xie度du,能neng順shun利li的de起qi模mo,得de到dao質zhi量liang隨sui著zhe市shi場chang對dui鑄zhu件jian產chan品pin外wai觀guan質zhi量liang要yao求qiu的de不bu斷duan提ti高gao,樹shu脂zhi砂sha鑄zhu件jian在zai品pin質zhi上shang的de優you勢shi,必bi將jiang日ri益yi受shou到dao重zhong視shi,樹shu脂zhi砂sha這zhe一yi鑄zhu件jian生sheng產chan工gong藝yi,也ye必bi將jiang得de到dao迅xun速su的de發fa展zhan和he普pu及ji。
模具的表麵粗糙度:模具表麵的粗糙度對樹脂砂鑄件的表麵粗糙度起決定性的作用,因而盡量降低模具表麵粗糙度,是獲得高品質鑄件的重要措施