Polyamide (PA) ipolymer ine akadzokororwa amide mapoka pacheni huru.Inowanzonzi Nylon, PA ndeimwe yepakutanga kugadzirwa uye anonyanya kushandiswa einjiniya mapurasitiki.Muchinyorwa chino nhasi,Qingdao Sainuozvinokutora iwe kuti uzive gumi mapoinzi akakosha ekugadziriswa naironi.

pp wakisiyeNylon yakagadziridzwa

Iyo yakakosha zvimiro zvenylon inoita kuti ishandiswe zvakanyanya mumotokari, zvemagetsi uye zvemagetsi zvishandiso, mechanical chimiro, zvemitambo zvemitambo, machira zvichingodaro.Nekudaro, neiyo miniaturization yemotokari, kuita kwepamusoro kwemagetsi nemidziyo yemagetsi, uye nekukasira kwemaitiro emagetsi emagetsi asingaremi, kudiwa kwenylon nekuita kwayo kuri kuwedzera zvishoma nezvishoma.Saka kushandurwa kwenylon kwakakosha.
Nyaya dzinoda kutariswa mukugadzirisa naironi
1. Kugadzika kwekushisa kwembiya
(1) Nekuti naironi icrystalline polima, kunyungudika kwayo kuri pachena.Iyo tembiricha yekupisa yenylon resin mukuumbwa kwejekiseni ine hukama nemidziyo yeresin, zvishandiso uye chimiro chechigadzirwa.
(2) Tembiricha yakawandisa iri nyore kukonzera shanduko yeruvara, brittleness uye sirivheri waya, nepo tembiricha yakadzika kwazvo inoita kuti zvinhu zviome uye zvinogona kukuvadza die uye screw.
(3) Kazhinji, tembiricha yakanyungudika yakaderera yePA6 i220 ℃ uye PA66 i250 ℃.Nekuda kwekusagadzikana kwekupisa kwenylon, hazvina kukodzera kugara mubhodhoro kwenguva yakareba pakupisa kwakanyanya, kuti usakonzeresa kushanduka uye yellowing yezvinhu.Panguva imwecheteyo, nekuda kwemvura yakanaka yenylon, inoyerera nekukurumidza kana tembiricha inopfuura kunyungudika kwayo.
2. Kugadzika kwekushisa kwe mold
(1) Iyo tembiricha ye mold ine imwe pesvedzero pane crystallinity uye molding shrinkage.Iyo tembiricha yekuumbwa inotangira pa80 ℃ kusvika 120 ℃.High mold tembiricha, yakakwira crystallinity, yakawedzera kupfeka kuramba, kuoma, modulus ye elasticity, kuderera kwekunyura kwemvura, kuwedzera kuumbwa kwe shrinkage, kunokodzera zvigadzirwa zvakakora;
(2) Kana ukobvu hwemadziro hwakakura kupfuura 3 mm, zvinokurudzirwa kushandisa yakaderera tembiricha mold ine 20 ~ 40 ℃.Kune magirazi anosimbisa zvinhu, tembiricha yekuumbwa inofanira kunge yakakwira kupfuura 80 ℃.

3. Kukora kwemadziro ezvigadzirwa
Iyo yekuyerera kureba reshiyo yenylon ndeye 150-200, ukobvu hwemadziro echigadzirwa hausi pasi pe0.8mm, kazhinji 1-3.2mm, uye kuderera kwechigadzirwa kune hukama nemadziro emadziro echigadzirwa.Iko kukora kwemadziro emadziro, ndiko kukura kuderera.
4. Kupera simba
Kufashukira kukosha kwenylon resin kunosvika 0.03mm, saka exhaust hole groove inofanirwa kudzorwa pazasi 0.025.
5. Mumhanyi negedhi
Iyo gomba dhayamita yegedhi haifanirwe kuve isingasviki 0.5T (t ndiko ukobvu hwechikamu chepurasitiki).Negedhi rakanyura, dhayamita shoma yegedhi inofanira kunge iri 0.75mm.
6. Girazi fiber kuzadza huwandu
Mukuita kwekuumbwa kwenylon, kudzikisa tembiricha yekuumbwa, kuwedzera kudzvanywa kwejekiseni uye kudzikisa tembiricha yechinhu kunoderedza shrinkage yenylon kusvika pamwero wakati, kuwedzera kushushikana kwemukati kwechigadzirwa uye kuita kuti zvive nyore kukanganisa.Semuenzaniso, iyo shrinkage yePA66 ndeye 1.5% ～ 2%, iyo shrinkage yePA6 ndeye 1% ~ 1.5%, uye shrinkage inogona kuderedzwa kusvika 0.3% mushure mekuwedzera girazi fiber additive.
Chiitiko chinoshanda chinotiudza kuti iyo yakawanda girazi faibha inowedzerwa, idiki iyo inoumba shrinkage yenaironi resin.Nekudaro, kana iyo girazi faibha yakawedzerwa yakawandisa, inokonzeresa inoyangarara fiber pamusoro pepamusoro, kusawirirana kwakashata uye mimwe mhedzisiro.Kazhinji, mhedzisiro yekuwedzera 30% yakanaka.
7. Kushandiswa kwezvinhu zvakashandiswa zvakare
Zviri nani kuti usapfuure katatu kuti udzivise kugadzirwa kwechigadzirwa kana kuderera kunopinza kwemuviri uye michina zvinhu.Huwandu hwekunyorera hunofanirwa kudzorwa pasi pe25%, yakawandisa inokonzeresa kushanduka kwemamiriro ekuita, uye musanganiswa wezvinhu zvakadzokororwa uye zvinhu zvitsva zvinofanirwa kuomeswa.
8. Mirayiridzo yekuchengetedza
Kana iyo nylon resin yatangwa, tembiricha yemhino inofanira kuvhurwa kutanga, uye ipapo tembiricha inofanira kupiswa mudhiramu rekudyisa.Kana iyo muromo yakavharwa, usambofa wakatarisana negomba rekupfapfaidza, kuitira kudzivirira kungoerekana kusunungurwa kwekunyungudika mudhiramu rekudyisa nekuda kwekumanikidza kuunganidza, izvo zvinogona kukonzera njodzi.

9. Kushandiswa kwemumiririri wekusunungura
Iko kushandiswa kweiyo diki ye mold kuburitsa agent dzimwe nguva inogona kuvandudza uye kubvisa bubble uye zvimwe zvirema.Iyo inoburitsa zvigadzirwa zvenaironi inogona kunge iri zinc stearate uye chena mafuta, kana kusanganiswa kuita paste.Huwandu hwekuburitsa mumiriri hunofanirwa kuve hudiki uye hwakafanana kuti udzivise kuremara kwepamusoro.Iyo sikuruu inofanira kubviswa kana muchina wavharwa kudzivirira sikururu kubva pakutyoka panguva yekugadzirwa kunotevera.

10. Post kurapwa
(1) Zvigadzirwa zvinofanirwa kupiswa mushure mekugadzira
Nzira dzakajairika mumafuta emaminerari, glycerin, parafini yemvura uye imwe yakakwira yekubikira mvura, tembiricha yekupisa yekupisa inofanira kunge iri 10 ~ 20 ℃ yakakwirira kupfuura tembiricha yekushandisa, uye nguva yekurapa zvinoenderana nemadziro emadziro echigadzirwa.Ukobvu pazasi 3 mm ndeye 10 ~ 15 min, ukobvu i3 ~ 6 mm, uye nguva i15 ~ 30 min.chigadzirwa mushure mekupisa kwekupisa kunofanira kunyoroveswa zvishoma nezvishoma kusvika kune tembiricha yekamuri, kuitira kudzivirira kutonhora kamwe kamwe kubva kukonzeresa chizvarwa chekushushikana mune chigadzirwa.
(2) Zvigadzirwa zvinofanirwa kurapwa nehunyoro hunodzora mushure mekuumbwa
Humidity control inonyanya kushandiswa kune zvigadzirwa zvine hunyoro hwepamusoro.Pane nzira mbiri: imwe iri kufashaidza humidity control yemvura;Imwe ndiyo nzira yekunyorova ye potassium acetate aqueous solution (chiyero che potassium acetate kumvura 1.25: 1, 121 ℃ yekuvira).
Mvura inofashaira iri nyore, chero bedzi chigadzirwa chacho chakaiswa munharaunda ye 65% humidity, kuitira kuti isvike pakuenzana kwekunyorova kwemvura, asi nguva yakareba.Iyo tembiricha yekurapa ye potassium acetate aqueous solution ndeye 80 ~ 100 ℃, uye nguva yekurapa inonyanya kuenderana nechigadzirwa madziro ukobvu, apo ukobvu hwemadziro huri 1.5mm, anenge 2h, 3mm, 8h, 6mm, 16 ~ 18h.
Qingdao Sainuo Chemical Co., Ltd.Isu tiri kugadzira PE wakisi, PP wax, OPE wax, EVA wax, PEMA, EBS, Zinc/Calcium Stearate….Zvigadzirwa zvedu zvakapfuura REACH, ROHS, PAHS, FDA yekuongorora.
Sainuo zorora wakavimbiswa wakisi, gamuchira kubvunza kwako!
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