BMC bụ mbiri nkeNgwakọta ịkpụzi nnukwuna English, Chinese aha bụ nnukwu Molding Compound (nke a na-akpọkwa: unsaturated polyester glass fiber enhanced Bulk Molding Compound) site na mmiri mmiri resin, ala shrinkage gị n'ụlọnga, crosslinking gị n'ụlọnga, initiator, filler, short-bee iko eriri flakes na ndị ọzọ akụkụ nke anụ ahụ ngwakọta nke mgbagwoju, na ọnọdụ okpomọkụ na nrụgide, crosslinking nke polyester na unsatu. N'okpuru okpomọkụ na nrụgide, a na-ejikọta polyester na styrene na-adịghị mma ma gwọọ ya site na mmeghachi omume polymerization. Ngwongwo ya dị mma na ihe ndị dị mma eletriki, na-eguzogide okpomọkụ na nhazi nhazi dị mma na-eji ngwa eletriki, ngwá ọrụ, mmepụta ụgbọ ala, ụgbọ elu, njem, ụlọ ọrụ mmepụta ihe.
Usoro nhazi
1. Unsaturated polyester resin: na smc / bmc pụrụ iche resin, tumadi m-phenyl elu, mmetụta na-eguzogide, corrosion eguzogide, arc resistance, kwesịrị ekwesị maka mmepụta nke ngọngọ ma ọ bụ anisotropic ngwaahịa.
2. Onye na-ahụ maka crosslink; na monomer styrene, ego nke up30% ~ 40%, dabere na ọdịnaya nke abụọ agbụ na unsaturated polyester na nkezi nke trans okpukpu abụọ nkekọ na cis abụọ agbụ, ọnụ ọgụgụ dị elu nke crosslinking monomers, nwere ike nweta ọgwụgwọ zuru oke.
3. The initiator na elu okpomọkụ ọgwụgwọ gị n'ụlọnga, tert-butyl peroxybenzoate (TBPB) bụ nke a na-ejikarị elu okpomọkụ na-agwọ ọrịa, mmiri mmiri decomposition okpomọkụ nke 104 degrees ịkpụzi okpomọkụ nke 135 ka 160 degrees.
4. Ndị na-ahụ maka nkwụsịtụ dị ala na-ejikarị resins thermoplastic eme ihe, iji mgbasawanye ọkụ na-eme ka nkwụsị nke ịkpụzi. N'ozuzu, a ga-achịkwa ọnụ ọgụgụ shrinkage nke ngwaahịa na 0.1 ~ 0.3%, ya mere, a ghaghị ịchịkwa usoro ọgwụgwọ ahụ.
5. Ihe mgbakwunye: a na-ejikarị njikọ ejikọta 6 ~ 12mm ogologo obere eriri 6 ọkụ ọkụ na-eji Al2O3.3H2O dabeere, na-agbakwụnye obere ego nke ọhụrụ phosphorus-nwere ire ọkụ retardant, hydrated alumina na-arụkwa ọrụ nke filler 7. Fillers nwere ike ibelata ọnụ ahịa nke imeziwanye ihe eletriki na ọkụ ọkụ. Calcium carbonate bụ ihe ndochi kachasị ogologo ejiri rụọ ọrụ nke ọma, n'ozuzu n'ụdị dị mma, micropowder mgbe ejikọtara ọgwụgwọ wee gbakwunye ya.
Usoro BMC
1. Lezienụ anya na usoro nke ịgbakwunye ihe. Ejikọtara ya na ụdị z-ụdị kneading igwe, igwe na-egweri nwere ngwaọrụ kpo oku, ma ọ bụ edo edo, enwere ike ịhụ tapawa agba ma ọ bụ agba carbon dabara adaba, ihe dị ka nkeji 15 ~ 18.
2. Mkpirisi eriri iko iko dị mkpụmkpụ iji sonyere nke ikpeazụ, n'oge iji sonyere ọnụ ọgụgụ buru ibu nke eriri agbajiri agbaji, na-emetụta ike nke
3. BMC ihe ga-echekwara na obere okpomọkụ, n'ozuzu na 10 degrees Celsius, okpomọkụ dị elu, na unsaturated resin dị mfe ịgafe-njikọ na ọgwụgwọ, na mgbe ahụ nhazi ihe isi ike ịkpụzi.
4. Ịkpụzi okpomọkụ: 140 degrees ma ọ bụ otú, elu na ala ebu okpomọkụ 5 ~ 10 degrees, ịkpụzi mgbali 7mpa ma ọ bụ otú, na-ejide oge 40 ~ 80s / mm
Nchọpụta ụlọ ọrụ
1. Ngwaahịa na-agbawa: nsogbu mgbagwoju anya ngwaahịa bụ ihe a na-ahụkarị, karịsịa n'oge oyi na ọnọdụ okpomọkụ dị ala. Ihe a na-akpọ mgbawa na-ezo aka na ngwaahịa site na nrụgide dị n'ime, mmetụta mpụga ma ọ bụ ọnọdụ gburugburu ebe obibi na mmetụta ndị ọzọ n'elu ma ọ bụ mgbawa n'ime.
2. Ngwọta; kpọmkwem site na akụrụngwa, oke na usoro iji dozie.
2.1 Nhọrọ na nhazi nke akụrụngwa
1) Resin bụ matriks nke bmc, resin polyester na-adịghị mma, vinyl ester,phenolic resin, melamine, wdg. Resin bụ ọgwụgwọ ngwaahịa, na isi ike. Ya mere, iji smc / bmc pụrụ iche resin, bụ m-phenylene ụdị resin, m-phenylene resin karịa ụdị o-phenylene nke elu viscosity, ya mere na mgbakwunye na resin n'onwe ya shrinkage bụ obere, nwere ike na-anabata ndị ọzọ crosslinking monomers, nke mere na njupụta nke njupụta na-abawanye, shrinkage ọnụego mbelata.
(2) tinye ihe mejupụtara ọnụ ala shrinkage; unsaturated polyester resin curing contraction ọnụego ruo 5 ~ 8%, tinye a dịgasị iche iche nke filler shrinkage ka karịa 3%, ngwaahịa n'ozuzu shrinkage ọnụego nke ihe karịrị 0.4% ka mgbawa, otú tinye thermoplastic resins, ojiji nke thermoplastic resins iji kpochapụ thermal mgbasawanye nke ọgwụgwọ nkwekọrịta nke akụkụ. pmma, ps add na monomer styrene ngwakọta na mgbasa nke ka mma, mgbakwunye nke pmma Ngwunye kacha mma. Enwere ike ịchịkwa mbelata ngwaahịa na 0.1 ~ 0.3%.
(3) ndochi, ire ọkụ retardant, iko eriri; ogologo eriri iko - n'ozuzu 6 ~ 12mm, mgbe ụfọdụ izute elu n'ibu Njirimara na 25mm; iji mezuo ihe achọrọ nke ịkpụzi fluidity, ka 3mm. ọdịnaya eriri iko na-abụkarị 15% ~ 20%; maka ngwaahịa na-arụ ọrụ dị elu, ruo 25%. Ọdịnaya eriri iko BMC dị ala karịa SMC, ị nwere ike itinye mgbakwunye ọzọ, yabụ ọnụ ahịa ahụ dị ala iji mee ihe mkpuchi inorganic. Lower iji mee ka inorganic filler, ire ọkụ retardant, iko fiber na resin nwere kemịkalụ Nchikota n'etiti izugbe ojiji nke silane njikọ njikọ tupu ịgwakọta, na-ejikarị KH-560, KH-570 mmetụta dị mma iji sonyere ndị siri ike dị mma, micronized ihe, dị ka nnukwu calcium carbonate na micronized ọkwa, urughuru size 12 ~ 570.
2.2 BMC proportioning chọrọ Bmc isi resin, ego enweghị ike ịbụ ihe na-erughị 20%, ya ego nke initiator metụtara ego nke crosslinking gị n'ụlọnga ihu ọma na-enweghị ọzọ tinye ego nke crosslinking gị n'ụlọnga na resin ọdịnaya aza maka 35%, na mgbakwunye na ego nke ala shrinkage gị n'ụlọnga isonyere nwekwara dabere na ego nke resin. Ojiji nke onye na-agwọ ọrịa na-ekpo ọkụ dị elu TBPB, filler na retardant ọkụ (aluminom hydroxide) iji sonyere ngụkọta nke ihe dịka 50% kwesịrị ekwesị, bụ okpukpu abụọ karịa resin, nke ukwuu iji sonyere ike nke ihe owuwu ahụ mebiri emebi, dị mfe ịgbawa!
2.3 Usoro usoro mmepụta
(1) Ịgwakọta, nke mbụ, mgbe ị na-agwakọta ihe a ga-agwakọta nke ọma, ntụ ntụ na-ebu ụzọ gbakwunye obere obere ike ndọda, wee gbakwunye nnukwu ike ndọda, a na-agwakọta mmiri ahụ na mbụ wee gbakwunye ya, onye na-ebido bụ nke ikpeazụ ka a ga-agbakwunye, a ga-agbakwunye thickener tupu resin paste na polystyrene igwakorita. A na-agbakwunye eriri iko na batches
(2) ọnọdụ usoro ịkpụzi: usoro nhazi ihe na-emetụta ngwaahịa ahụ ozugbo ọ dị mma ma ọ bụ ihe ọjọọ. Ọtụtụ mgbe na mmụba nke nrụgide ịkpụzi, mbelata na-ebelata. Ebube okpomọkụ dị oke elu ga-etolite ahịrị njikọ elu, ihe ahụ abụghị otu, nrụgide dị n'ime ya dị iche, dị mfe ịgbawa. Ijide nrụgide maka ogologo oge kwesịrị ekwesị na-enyere aka igbochi mgbawa nke akụkụ ahụ.
(3) preheating mkpuchi usoro: ala okpomọkụ akụkụ dị mfe ịgbawa. Ya mere, ihe ahụ kwesịrị ibu ụzọ kpoo ọkụ
Oge nzipu: Jun-10-2025
