Pehea e hoʻomaikaʻi ai i ka pololei o nā mold plastic?

1. ʻO ka maikaʻi o ka hoʻoheheʻe ʻana i ka mold e pili ana i ka pololei o ka hana ʻana a me ka maikaʻi o ka ʻili

ʻO ka pololei o ka mīkini ka degere o ka conformity ma waena o ka nui maoli, ke ʻano a me ke kūlana o ka ʻili o ka ʻāpana mīkini a me nā ʻāpana geometric kūpono i koi ʻia e ke kiʻi.
ʻO ka palena geometric kūpono, no ka nui, ʻo ia ka nui awelika; No ka geometry ili, ʻo ia ka pōʻai piha, cylinder, plane, cone a me ka laina pololei. No ke kūlana like ma waena o nā ʻili, ua like loa ia, kū pololei, coaxial, symmetric, a me nā mea ʻē aʻe. ʻO ka ʻokoʻa ma waena o nā ʻāpana geometrical maoli a me nā ʻāpana geometrical kūpono o ka ʻāpana i kapa ʻia ʻo ka machining error.
ʻO ka pololei o ka mīkini a me ka hewa machining nā huaʻōlelo ʻelua i hoʻohana ʻia e loiloi i nā ʻāpana geometric o nā ʻili mīkini. ʻIke ʻia ka pololei o ka mīkini e ka māka hoʻomanawanui, ʻoi aku ka liʻiliʻi o ka helu helu, ʻoi aku ka kiʻekiʻe o ka pololei; Hōʻike ʻia ka hewa machining e ka helu helu, a ʻoi aku ka nui o ka helu helu, ʻoi aku ka nui o ka hewa. ʻO ka pololei o ka hana kiʻekiʻe, ʻo ia hoʻi ka hapa liʻiliʻi o ka hoʻoili ʻana, a ʻo ia hoʻi.
ʻAʻole pololei loa nā ʻāpana maoli i loaʻa i kekahi ʻano hana, mai ka hana o ka ʻāpana, ʻoiai ʻo ka hewa hana i loko o ka hoʻomanawanui i koi ʻia e ke kiʻi ʻāpana, ua manaʻo ʻia ka pololei o ka hana ʻana.
ʻO ka maikaʻi o ka mīkini e pili ana i ka maikaʻi o ka mīkini o nā ʻāpana a me ka maikaʻi o ka hui ʻana o ka mīkini. ʻO ka maikaʻi o ka mīkini o nā ʻāpana e pili ana i ka pololei o ka mīkini o nā ʻāpana a me ka maikaʻi o ka ʻili o nā ʻāpana ʻelua. ʻO ka pololei o ka mīkini e pili ana i ke kiʻekiʻe o nā ʻāpana geometric maoli (ka nui, ke ʻano a me ke kūlana) o nā ʻāpana ma hope o ka hana ʻana e kūlike me nā ʻāpana geometric kūpono.
Ua kapa ʻia ka ʻokoʻa ma waena o lākou machining error. Hōʻike ka nui o ka hewa machining i ka pololei machining. ʻO ka nui o ka hewa, ʻoi aku ka haʻahaʻa o ka pololei o ka mīkini, a me ka liʻiliʻi o ka hewa, ʻoi aku ka kiʻekiʻe o ka pololei o ka mīkini.

2. Nā mea nui e pili ana i ka pololei o ka hana

2.1 Ka pololei o ke ana
Hōʻike i ke kiʻekiʻe o ka conformity ma waena o ka nui maoli o ka ʻāpana mīkini a me ke kikowaena tolerance zone o ka nui ʻāpana. Hoʻomalu ʻia ka pololei o ka dimensional e nā hoʻomanawanui dimensional. ʻO ka hoʻomanawanui dimensional ka hoʻololi ʻae ʻia i ka nui o kahi ʻāpana i ka wā e ʻoki ai. I ka hihia o ka nui kumu like, ʻoi aku ka liʻiliʻi o ka hoʻomanawanui ʻana a ʻoi aku ka kiʻekiʻe o ka pololei.

2.2 Ka pololei o ke ano
Hōʻike ia i ke kiʻekiʻe o ka conformity ma waena o ka geometry maoli o ka ʻāpana mīkini a me ka geometry kūpono. He 6 mau mea e loiloi ai i ka pololei o ke kinona, e like me ka pololei, ka palahalaha, ka poepoe, ka cylindricity a me ka profile laina. Hoʻomalu ʻia ka pololei o ke ʻano e ka ʻae ʻana i ke ʻano, a ua māhele ʻia kēlā me kēia ʻano hoʻomanawanui i 12 mau pae pololei koe wale no 13 mau pae pololei o ka poepoe a me ka cylindricity. ʻO ka pae 1 ka mea kiʻekiʻe loa a ʻo ka pae 12 ka haʻahaʻa.

2.3 Kūlana pololei
E pili ana i ka ʻokoʻa o ka pololei o ke kūlana ma waena o nā ʻili kūpono o nā ʻāpana mīkini. ʻEwalu mau mea e loiloi i ka pololei o ke kūlana, e like me ka parallelism, perpendicularity, inclination, coaxiality, symmetry, position, round runout and full runout. Hoʻomalu ʻia ka pololei o ke kūlana e ka hoʻomanawanui kūlana, i māhele ʻia i 12 mau pae pololei.