Pehea e koho ai i ka mea hoʻopaʻa wela PVC?

1, E wehewehe i nā hiʻohiʻona noi a me nā koi hana
1. Nā Huahana Meaʻai/Lapaʻau
E hoʻoikaika i ka hoʻohana ʻana i nā mea hoʻopaʻa organotin (mercaptan methyl tin), kahi e kūlike ai i nā kūlana FDA a he transparency kiʻekiʻe, kūpono no nā huahana PVC moakaka, nā kiʻiʻoniʻoni ʻōpala meaʻai, a pēlā aku; ʻO nā koho ʻē aʻe e komo pū me nā mea hoʻopaʻa composite calcium zinc, pono e hōʻoia ʻia e REACH, LFGB, a me nā kūlana ʻē aʻe e hoʻokō ai i nā koi neʻe ʻaʻohe ʻawahia.
2. Nā Mea Hana Hale/ʻOihana
Nā paipu paʻakikī a me nā papa: Manaʻo ʻia e hoʻohana i nā mea hoʻopaʻa paʻakai kēpau (haʻahaʻa ke kumu kūʻai, kiʻekiʻe ke kūpaʻa wela), akā pono e uku ʻia ka makaʻala i ko lākou mau palena o ke kaiapuni.
2. E loiloi i nā lula kaiapuni a me ka palekana
1. Hoʻokō i ke kaiapuni:
Pono nā mea hoʻopaʻa ʻole kēpau a me nā mea hoʻopaʻa ʻole cadmium e like me ka calcium zinc composite a i ʻole nā ​​​​organotin stabilizers no ka hoʻokuʻu aku i ka European Union a i ʻole nā ​​​​​​mahina lapaʻau.
E hōʻalo i nā mea hoʻopaʻa paʻakai kēpau (ʻawahia nui) a koho i nā huahana e kūlike me nā kūlana ROHS a me REACH.
2. Palekana hoʻopili: Pono e hōʻoia ʻia ka nui o ka neʻe ʻana o nā mea hoʻopaʻa no nā mea ʻōpala meaʻai, a pono e makemake ʻia nā ʻano hui kaumaha molekala kiʻekiʻe.
3, Hoʻohālikelike ʻenehana hana a me ka ʻōnaehana lubrication
1. Hoʻololi ʻana i nā ʻano hana
Hoʻoheheʻe ʻia ʻana o ka extrusion/injection: Pono e hui pū ʻia nā mea hoʻopaʻa tin organik me kahi ʻōnaehana lubrication paraffin wax + calcium stearate, a pono e kāohi ʻia ka nui o ka lubricant waho i hoʻohui ʻia ma 0.1-0.5 mau ʻāpana e pale aku ai i ka hoʻopuehu like ʻole;
ʻŌwili/hoʻoheheʻe puhi: Pono e hui pū ʻia nā mea hoʻopaʻa hui calcium zinc me nā lubricants wela kiʻekiʻe e like me ka polyethylene wax e pale aku i ka nui o ka viscosity heheʻe;
Hoʻonui i nā palena hana: Pono ka hana ʻana i ka mahana kiʻekiʻe (ma luna o 200 ℃) i ka hoʻohana ʻana i nā mea hoʻopaʻa wela (e like me ka organotin, a pēlā aku) e hōʻemi i ka torque kiʻekiʻe o ka heheʻe ma mua o 15%. Pono nā huahana moakaka e kāohi i ka launa pū ma waena o nā mea hoʻopaʻa a me nā resins e pale aku i ka ua a me ka hoʻonui ʻia o ka noe ma 37.
4. Nā ʻano hōʻoia a me ka hoʻāʻo ʻana
Hoʻāʻo kūpaʻa wela: E kau i ka hāpana PVC e loaʻa ana ka mea hoʻopaʻa ma 80 ℃ no 48 mau hola a nānā i ka loli o ke kala.
Hoʻohālike pale ʻana i ke aniau: E loiloi i ka hopena pale UV ma o ka hoʻāʻo ʻelemakule QUV, e koi ana i ka helu paʻa o ka ikaika tensile ma mua o 85% ma hope o 5000 mau hola.
Ka hōʻoia ʻana o ka hana hana: E hoʻohana i ka rheometer torque e nānā i ke kahe o ka heheʻe a hoʻonui i ka lakio o ka lubricant a me ka stabilizer.