Polyamide (PA) yog ib qho polymer uas muaj cov pab pawg amide rov qab rau ntawm cov saw tseem ceeb.Feem ntau hu ua Nylon, PA yog ib qho ntawm cov tsim tawm ntxov tshaj plaws thiab feem ntau siv cov yas yas.Nyob rau hauv tsab xov xwm hnub no,Qingdao Sainuoyuav coj koj kom paub txog kaum lub ntsiab lus tseem ceeb ntawm kev hloov kho nylon.

pp vajrau Nylon hloov

Cov khoom tshwj xeeb ntawm nylon ua rau nws siv dav hauv tsheb, cov khoom siv hluav taws xob thiab hluav taws xob, cov qauv siv tshuab, cov khoom ua si, textile thiab lwm yam.Txawm li cas los xij, nrog lub miniaturization ntawm lub tsheb, kev ua haujlwm siab ntawm cov khoom siv hluav taws xob thiab hluav taws xob, thiab kev nrawm ntawm cov txheej txheem ntawm cov cuab yeej siv lub teeb, qhov kev thov rau nylon thiab nws cov kev ua tau zoo yog maj mam nce.Yog li kev hloov kho ntawm nylon tseem ceeb heev.
Cov teeb meem xav tau kev saib xyuas hauv kev hloov kho nylon
1. Kev ntsuas kub ntawm lub thoob
(1) Vim hais tias nylon yog crystalline polymer, nws cov ntsiab lus melting yog pom tseeb.Lub chim kub ntawm nylon resin nyob rau hauv kev txhaj tshuaj molding muaj feem xyuam rau cov khoom ntawm resin, khoom thiab cov duab ntawm cov khoom.
(2) Cov khoom siv kub dhau heev yog yooj yim ua rau cov xim hloov, brittleness thiab nyiaj hlau, thaum cov khoom siv kub tsawg dhau ua rau cov khoom siv tawv thiab tuaj yeem ua rau tuag thiab ntsia hlau.
(3) Feem ntau, qhov qis tshaj qhov kub ntawm PA6 yog 220 ℃ thiab PA66 yog 250 ℃.Vim tias qhov tsis zoo thermal stability ntawm nylon, nws tsis tsim nyog nyob rau hauv lub thoob rau lub sij hawm ntev ntawm qhov kub thiab txias, thiaj li tsis ua rau discoloration thiab yellowing ntawm cov ntaub ntawv.Nyob rau tib lub sijhawm, vim qhov zoo ntawm cov nylon fluidity, nws ntws sai heev thaum kub tshaj nws cov ntsiab lus melting.
2. Pwm qhov kub thiab txias
(1) Cov pwm kub muaj qee yam cuam tshuam rau crystallinity thiab molding shrinkage.Cov pwm kub yog li ntawm 80 ℃ mus rau 120 ℃.Cov pwm kub kub, siab crystallinity, nce hnav tsis kam, hardness, modulus ntawm elasticity, txo dej nqus, nce molding shrinkage, haum rau cov khoom tuab;
(2) Yog tias cov phab ntsa thickness ntau dua 3 hli, nws raug nquahu kom siv cov pwm tsis tshua muaj pwm nrog 20 ~ 40 ℃.Rau cov khoom siv iav, cov pwm kub yuav tsum siab tshaj 80 ℃.

3. Phab ntsa thickness ntawm cov khoom
Qhov sib piv ntev ntawm cov nylon yog 150-200, phab ntsa thickness ntawm cov khoom yog tsis tsawg tshaj li 0.8 hli, feem ntau 1-3.2 hli, thiab shrinkage ntawm cov khoom muaj feem xyuam rau cov phab ntsa thickness ntawm cov khoom.Lub thickness ntawm phab ntsa yog, qhov ntau dua qhov shrinkage yog.
4. Ncua tseg
Tus nqi dhau ntawm nylon resin yog kwv yees li 0.03mm, yog li qhov tso tawm qhov zawj yuav tsum tau tswj qis dua 0.025.
5. Khiav thiab rooj vag
Lub qhov taub ntawm lub rooj vag yuav tsum tsis pub tsawg tshaj 0.5T (t yog lub thickness ntawm yas).Nrog rau lub rooj vag submerged, qhov tsawg kawg nkaus txoj kab uas hla ntawm rooj vag yuav tsum yog 0.75mm.
6. iav fiber ntau filling ntau
Nyob rau hauv cov txheej txheem ntawm nylon molding, txo cov pwm kub, ua kom lub siab txhaj tshuaj thiab txo cov khoom kub yuav txo qhov shrinkage ntawm nylon mus rau ib qho twg, ua rau kom cov kev ntxhov siab sab hauv ntawm cov khoom thiab ua kom yooj yim rau deform.Piv txwv li, lub shrinkage ntawm PA66 yog 1.5% ~ 2%, lub shrinkage ntawm PA6 yog 1% ~ 1.5%, thiab shrinkage yuav txo tau li ntawm 0.3% tom qab ntxiv iav fiber ntau additive.
Cov kev paub dhau los qhia peb tias ntau cov iav fiber ntau ntxiv, qhov me me ntawm cov yas molding shrinkage ntawm nylon resin.Txawm li cas los xij, yog tias cov iav fiber ntau ntxiv ntau dhau, nws yuav ua rau cov fiber ntau ntab rau saum npoo, tsis zoo sib xws thiab lwm yam yuav tshwm sim.Feem ntau, cov nyhuv ntawm kev ntxiv 30% yog qhov zoo.
7. Kev siv cov khoom siv rov ua dua tshiab
Nws yog qhov zoo dua kom tsis txhob ntau tshaj peb zaug kom tsis txhob muaj cov khoom tsis muaj xim lossis tsis muaj zog ntawm lub cev thiab cov khoom siv kho tshuab.Daim ntawv thov nyiaj yuav tsum tau tswj qis dua 25%, ntau dhau yuav ua rau qhov hloov pauv ntawm cov txheej txheem, thiab cov khoom siv rov ua dua tshiab thiab cov ntaub ntawv tshiab yuav tsum tau qhuav.
8. Cov lus qhia kev nyab xeeb
Thaum cov nylon resin pib, qhov kub ntawm lub nozzle yuav tsum tau qhib ua ntej, thiab tom qab ntawd qhov kub thiab txias yuav tsum tau muab tso rau hauv lub thoob ntim khoom noj.Thaum lub nozzle raug thaiv, tsis txhob fim lub qhov tshuaj tsuag, thiaj li tiv thaiv qhov tshwm sim sai sai ntawm cov yaj nyob rau hauv lub thoob noj vim lub siab tsub zuj zuj, uas yuav ua rau muaj kev phom sij.

9. Daim ntawv thov tso tawm tus neeg sawv cev
Kev siv cov pwm tso tawm me me tuaj yeem txhim kho thiab tshem tawm cov npuas thiab lwm yam tsis xws luag.Tus neeg sawv cev tso tawm ntawm cov khoom nylon tuaj yeem yog zinc stearate thiab cov roj dawb, los yog sib xyaw ua ke.Tus nqi ntawm tus neeg tso tawm yuav tsum yog me me thiab sib xws kom tsis txhob muaj qhov tsis xws luag.Cov ntsia hlau yuav tsum tau muab pov tseg thaum lub tshuab raug kaw kom tsis txhob muaj cov ntsia hlau tawg thaum lub sijhawm tsim khoom tom ntej.

10. Tom qab kev kho mob
(1) Cov khoom yuav tsum tau kho cua sov tom qab tsim
Cov kev siv ntau hauv cov roj ntxhia, glycerin, kua paraffin thiab lwm cov kua dej kub npau npau, qhov kev kho cua sov yuav tsum yog 10 ~ 20 ℃ siab tshaj qhov siv kub, thiab lub sijhawm kho yog nyob ntawm phab ntsa thickness ntawm cov khoom.Lub thickness hauv qab 3 hli yog 10 ~ 15 min, lub thickness yog 3 ~ 6 hli, thiab lub sij hawm yog 15 ~ 30 min.cov khoom tom qab kev kho cua sov yuav tsum tau maj mam txias rau hauv chav tsev kub, thiaj li tiv thaiv kom txhob cia txias los ntawm kev ua rau lub regeneration ntawm kev nyuaj siab nyob rau hauv cov khoom.
(2) Cov khoom yuav tsum tau kho nrog cov av noo tswj tom qab molding
Humidity tswj yog tsuas yog siv rau cov khoom uas muaj cov av noo siab.Muaj ob txoj hauv kev: ib qho yog boiling dej humidity tswj;Lwm qhov yog cov txheej txheem ntub dej ntawm cov tshuaj potassium acetate aqueous (qhov piv ntawm potassium acetate rau dej yog 1.25: 1, boiling point 121 ℃).
Boiling dej yog qhov yooj yim, tsuav yog tias cov khoom tau muab tso rau hauv ib puag ncig ntawm 65% av noo, kom nws tuaj yeem ncav cuag qhov sib npaug ntawm noo noo nqus, tab sis lub sijhawm ntev.Kev kho kub ntawm cov tshuaj potassium acetate aqueous yog 80 ~ 100 ℃, thiab lub sijhawm kho feem ntau yog nyob ntawm cov khoom phab ntsa thickness, thaum phab ntsa thickness yog 1.5 hli, txog 2h, 3mm, 8h, 6mm, 16 ~ 18h.
Qingdao Sainuo Chemical Co., Ltd.Peb yog cov chaw tsim khoom rau PE ciab, PP ciab, OPE ciab, EVA ciab, PEMA, EBS, Zinc / Calcium Stearate ....Peb cov khoom tau dhau REACH, ROHS, PAHS, FDA kuaj.
Sainuo so assured ciab, txais tos koj nug!
E-mail：sales@qdsainuo.com
               sales1@qdsainuo.com
Chaw nyob: Chav 2702, Block B, Suning Building, Jingkou Road, Licang District, Qingdao, Suav