Ihe ndị dị ka shrinkage, fluidity, crystallinity, heat feel plastics and easy hydrolyzed plastics, stress cracking and gbazee cracking, thermal performance, the cooling rate, water absorption and so on should be considered in the settings of injection molding.

SainuoEBS wax

1. Shrinkage
Ụdị na ngụkọta oge nke thermoplastic ịkpụzi shrinkage akọwara n'elu. Ihe ndị na-emetụta thermoplastic ịkpụzi shrinkage bụ ndị a:
1.1 plastic iche
n'oge usoro ịkpụzi nke thermoplastic, n'ihi na olu mgbanwe nke crystallization, siri ike n'ime ime, nnukwu ihe fọdụrụ na nrụgide oyi kpọnwụrụ na plastic akụkụ, ike molekụla nghazi na ihe ndị ọzọ, tụnyere. na plastics thermosetting, ọnụ ọgụgụ nke ntanye dị ukwuu, ihe nkwụsịtụ dị obosara na ntụziaka doro anya. Na mgbakwunye, mbelata The shrinkage mgbe annealing ma ọ bụ iru mmiri akara ọgwụgwọ n'ozuzu ibu karịa nke thermosetting plastics.
1.2 plastic akụkụ àgwà
N'oge a na-akpụzi, ihe a wụrụ awụ na-akpakọrịta n'elu oghere ahụ, oyi akwa dị n'èzí na-ajụkwa ozugbo ka ọ bụrụ shei siri ike dị obere. N'ihi adịghị mma thermal conductivity nke plastic, n'ime oyi akwa nke plastic akụkụ cools nwayọọ nwayọọ na-etolite a elu-njupụta oyi akwa na nnukwu shrinkage. Ya mere, mgbidi ọkpụrụkpụ, ngwa ngwa jụrụ na elu-njupụta oyi akwa ọkpụrụkpụ ebelata nke ukwuu. Tụkwasị na nke ahụ, ọnụnọ ma ọ bụ enweghị ntinye nke ntinye, nhazi na ọnụọgụ nke ntinye na-emetụta kpọmkwem ihe ntinye ihe na-asọpụta, nkesa njupụta na nkwụsị nke nkwụsị, ya mere njirimara nke akụkụ plastik nwere mmetụta dị ukwuu na nha nha na ntụziaka.
Ụdị ntinye ntinye 1.3, nha na nkesa
ihe ndị a na-emetụta kpọmkwem usoro ntinye ihe, nkesa njupụta, nrụgide nrụgide na nri nri na oge ịmepụta oge. Ọ bụrụ na akụkụ nke ọdụ ụgbọ mmiri ahụ kpọmkwem na ọdụ ụgbọ mmiri dị ukwuu (karịsịa ma ọ bụrụ na akụkụ ahụ dị oke), nkwụsị ahụ dị ntakịrị ma ntụziaka ahụ dị ukwuu, ma ọ bụrụ na obosara na ogologo nke ọdụ ụgbọ mmiri dị mkpụmkpụ, ntụziaka ahụ dị ntakịrị. . Ọ bụrụ na ọ dị nso na ọdụ ụgbọ mmiri ma ọ bụ na-ejikọta ya na ntụziaka nrịba nke ihe, nkwụsị ahụ dị ukwuu.
1.4 akpụ ọnọdụ
Elu okpomọkụ ebu, ngwa ngwa jụrụ oyi nke a wụrụ awụ ihe, elu njupụta na nnukwu shrinkage, karịsịa maka crystalline ihe, n'ihi elu crystallinity na nnukwu olu mgbanwe, shrinkage bụ ukwuu. The ebu okpomọkụ nkesa na-metụtara esịtidem na mpụga jụrụ nke plastic akụkụ na uniformity nke njupụta, nke kpọmkwem na-emetụta size na ntụziaka nke shrinkage nke ọ bụla akụkụ. Na mgbakwunye, ijide nrụgide na oge na-enwekwa mmetụta dị ukwuu na nkwekọrịta. Ndị nwere nrụgide dị elu na ogologo oge nwere obere nkwekọrịta ma nnukwu ntụziaka.
Nrụgide injection dị elu, ihe dị iche iche nke viscosity nke ihe a wụrụ awụ dị ntakịrị, ihe mgbagwoju anya nke interlayer dị ntakịrị, na nkwụghachi nke na-agbanwe mgbe ọ nwụsịrị bụ nnukwu, ya mere enwere ike ibelata shrinkage nke ọma. Okpomọkụ ihe onwunwe dị elu, nkwụsịtụ dị ukwuu, ma ntụziaka dị ntakịrị. Ya mere, mbelata nke akụkụ plastik nwekwara ike gbanwee nke ọma site n'ịgbanwe ọnọdụ okpomọkụ, nrụgide, ọsọ injection na oge jụrụ oyi.

Sainuo wax wax flake

N'oge ịkpụzi ịkpụzi, a ga-ekpebi ọnụọgụ nke akụkụ ọ bụla nke akụkụ plastik dị ka ahụmịhe dabere n'ụdị shrinkage dị iche iche nke plastik dị iche iche, ọkpụrụkpụ mgbidi na ọdịdị nke akụkụ plastik, ụdị, nha na nkesa ntinye nri, na mgbe ahụ oghere. a ga-agbakọ nha. Maka akụkụ rọba dị elu nke ọma na mgbe ọ na-esiri ike ịchịkwa shrinkage, a ga-eji ụzọ ndị a na-emepụta ihe eji eme ihe:
① Maka dayameta dị n'èzí nke akụkụ plastik, a na-ewere ọnụ ọgụgụ dị nta nke ntanye, na ọnụ ọgụgụ ka ukwuu nke shrinkage bụ. ewepụtara maka dayameta dị n'ime, ka ọ hapụ ohere maka mgbazi mgbe ule ebu.
② Ụdị, nha na ọnọdụ nhazi nke usoro gating na-ekpebi site na ule ebu.
③ The size mgbanwe nke plastic akụkụ a ga-post mesoo ka a ga-ekpebi mgbe ọgwụgwọ gasịrị (atụ ga-abụ 24 awa mgbe demould).
④ Dezie ọnwụ ahụ dịka mbelata n'ezie.
⑤ Gbalịa ịkpụzi ọzọ, ma gbanwee ọnọdụ usoro nke ọma, ma gbanwee ntakịrị uru nke shrinkage iji mezuo ihe achọrọ nke akụkụ plastik.
2. Mobility
The fluidity nke thermoplastics nwere ike n'ozuzu na-enyocha site na usoro nke indexes dị ka molekụla arọ, gbazee index, Archimedean gburugburu eruba eruba ogologo, pụtara viscosity na eruba ruru (usoro ogologo / plastic akụkụ mgbidi ọkpụrụkpụ).
Ọ bụrụ na molekụla arọ bụ obere, molekụla arọ nkesa bụ sara mbara, molekụla Ọdịdị regularity bụ ogbenye, na gbazee index bụ elu, ịghasa eruba ogologo bụ ogologo, pụtara viscosity bụ obere, na eruba ruru bụ nnukwu, na fluidity bụ. nke ọma. Maka plastik nwere otu aha ngwaahịa, a ga-enyocha ntuziaka ahụ iji chọpụta ma mmiri ha dabara adaba maka ịkpụzi injection. Dị ka ebu imewe chọrọ, na fluidity nke nkịtị plastics nwere ike roughly kewara ụzọ atọ:
① Good fluidity: PA, PE, PS, PP, CA, poly (4) methylene;
② Polystyrene usoro resins na ọkara fluidity (dị ka ABS, dị ka), PMMA, POM na polyphenylene ether;
③ PC na-adịghị mma, PVC siri ike, polyphenylene ether, polysulfone, polysulfone, fluoroplastics.
Mmiri dị iche iche nke plastik dị iche iche na-agbanwekwa n'ihi ihe dị iche iche na-akpụzi. Isi ihe na-emetụta ya bụ ndị a:
① Mgbe okpomọkụ dị elu, mmiri na-abawanye ụba, ma plastik dị iche iche nwekwara ọdịiche. Mmiri mmiri nke PS (karịsịa ndị nwere mmetụta dị elu na uru MFR), PP, PA, PMMA, polystyrene gbanwetụrụ (dị ka ABS, dị ka), PC, Ca na plastik ndị ọzọ na-agbanwe nke ukwuu na okpomọkụ. Maka PE, POM na, mmụba ma ọ bụ ibelata okpomọkụ adịghị enwe mmetụta dị nta na mmiri ha. Ya mere, nke mbụ kwesịrị ịhazigharị okpomọkụ iji chịkwaa mmiri mmiri.
② Site na mmụba nke nrụgide injection, ihe a wụrụ awụ ga-akpụ akpụ nke ukwuu na mmiri mmiri ga-abawanye ụba, karịsịa PE na POM na-enwe mmetụta karị, ya mere, a ghaghị imezi nrụgide injection iji chịkwaa mmiri mmiri n'oge ịkpụzi.
③ Akpụkpọ anụ, ụdị usoro gating, nha, okirikiri nhọrọ ukwuu, imewe sistemu jụrụ oyi, ihe mgbaze ihe mgbaze (dị ka imecha elu, akụkụ akụkụ nke ọwa ihe, udi oghere, sistemu iyuzucha) na ihe ndị ọzọ na-emetụta ozugbo mmiri nke ihe gbazere n'ime. oghere. Ọ bụrụ na a na-akpali ihe a wụrụ awụ iji belata okpomọkụ ma mee ka mmiri na-eguzogide mmiri, a ga-ebelata mmiri mmiri.
A ga-ahọrọ usoro ezi uche dị na ya dị ka mmiri mmiri nke plastik a na-eji na-emepụta ihe. N'oge a na-akpụzi, a pụkwara ịchịkwa okpomọkụ ihe onwunwe, okpomọkụ ebu, nrụgide injection, ọsọ injection na ihe ndị ọzọ iji dozie ọnọdụ ndochi nke ọma iji gboo mkpa ịkpụzi.
3. Crystallinity
Thermoplastics nwere ike kewaa n'ime crystalline plastics na amorphous (nke a makwaara dị ka amorphous) plastik dị ka ha enweghị crystallization n'oge condensation.
Ihe a na-akpọ crystallization phenomenon bụ ihe na-eme na ụmụ irighiri ihe na-agagharị n'adabereghị na kpam kpam na ọnọdụ mgbagwoju anya site na ọnọdụ mgbaze ruo na steeti condensation nke rọba, wee ghọọ ihe na-eme ka ụmụ irighiri ihe ahụ kwụsị ịkwagharị n'enweghị nsogbu, pịa obere ọnọdụ, ma nwee. Ọchịchọ ime ndokwa molekụla bụrụ ihe nlereanya nkịtị.
Dị ka ọdịdị ọdịdị maka ikpe ikpe ndị a ụdị abụọ nke plastic, ọ nwere ike kpebisie ike site nghọta nke oké mgbidi plastic akụkụ nke plastics. N'ozuzu, ihe kristal bụ ihe na-adịghị mma ma ọ bụ translucent (dị ka POM), na amorphous ihe na-apụta ìhè (dị ka PMMA). Otú ọ dị, e nwere ndị ọzọ. Dịka ọmụmaatụ, poly (4) methylene bụ plastik crystalline nke nwere nghọta dị elu, na ABS bụ ihe amorphous ma ọ bụghị nke doro anya.

Sainuoope waxntụ ntụ

A ga-edeba ihe ndị a chọrọ na nlezianya anya maka plastik crystalline n'oge nhazi ịkpụzi na nhọrọ nke igwe na-akpụzi injection:
① A na-achọkwu okpomọkụ maka okpomọkụ ihe onwunwe na-ebili na okpomọkụ na-emepụta, ya mere, a ga-eji ngwá ọrụ nwere nnukwu ike plasticizing.
② Okpomọkụ ewepụtara n'oge oyi na imegharị ihe dị ukwuu, yabụ na ọ ga-adị mma nke ukwuu.
③ The kpọmkwem ike ndọda iche n'etiti gbazere ala na siri ike steeti bụ nnukwu, na ịkpụzi shrinkage bụ nnukwu, na shrinkage na porosity dị mfe ime.
④ Ngwa ngwa jụrụ oyi, obere crystallinity, obere shrinkage na nghọta dị elu. A na-ejikọta crystallinity na mgbidi mgbidi nke akụkụ plastik. Mgbidi mgbidi ahụ nwere uru nke ịdị jụụ ngwa ngwa, nnukwu crystallinity, nnukwu shrinkage na ezigbo anụ ahụ. Ya mere, a ghaghị ịchịkwa okpomọkụ ebu nke ihe kristal dị ka achọrọ.
⑤ Anisotropy dị ịrịba ama na nnukwu nrụgide dị n'ime. Mgbe agbajichara, ụmụ irighiri ihe ndị ahụ na-abụghị crystal na-aga n'ihu na-akpụ akpụ, nọ n'ọnọdụ enweghị ike ike, ma na-enwekwa ike nrụrụ na nrụrụ.
⑥ Okpomọkụ kristal dị warara, ọ dịkwa mfe ịgbanye ihe na-agbazeghị n'ime anwụ ma ọ bụ gbochie ntinye nri.
Qingdao Sainuo Chemical Co., Ltd. Njikọ Anyị bụ ndị na-emeputa maka Pee waks, eyi waks, OPE waks, EVA wax, PEMA, EBS, Zinc / Calcium Stearate .... Ngwaahịa anyị agafeela ule REACH, ROHS, PAHS, FDA. Biko nwee obi ike wax, nabata ajụjụ gị! Weebụsaịtị:https://www.sanowax.com
E-mail ： sales@qdsainuo.com
               sales1@qdsainuo.com
Adress ： 27lọ 2702, Block B, Suning Building, Jingkou Road, Licang District, Qingdao, China