Indlela yokuchonga ngokuchanekileyo kwaye ukhethe phakathi kwePA6 elungisiweyo kunye ne-PA66 (iCandelo 2)?

Inqaku lesi-5: Indlela yokukhetha phakathi kwe-PA6 kunye ne-PA66?

1. Xa ukuchasana kweqondo lokushisa eliphezulu ngaphezu kwe-187 ° C kungafuneki, khetha i-PA6 + GF, njengoko ibiza kakhulu kwaye kulula ukuyiqhuba.
2. Kwizicelo ezifuna ukumelana nobushushu obuphezulu, sebenzisa iPA66+GF.
3. I-HDT (i-Heat Deflection Temperature) ye-PA66 + 30GF yi-250 ° C, ngelixa i-PA6 + 30GF yi-220 ° C.

I-PA6 ineempawu zekhemikhali kunye nezomzimba ezifana ne-PA66, kodwa inendawo esezantsi yokunyibilika kunye noluhlu olubanzi lokuqhuba ubushushu. Inika ukuchasana kwempembelelo engcono kunye nokumelana ne-solvent kune-PA66 kodwa inokufunxeka okuphezulu kokufuma. Ekubeni iimpawu ezininzi ezisemgangathweni zamalungu eplastiki zichatshazelwa kukufunxa ukufuma, oku kufuneka kuqwalaselwe ngononophelo xa kuyilwa iimveliso ngePA6.

Ukuqinisekisa iimpawu zemishini ye-PA6, iimodyuli ezahlukeneyo zihlala zongezwa. Ifayibha yeglasi sisongezo esiqhelekileyo, kwaye irabha eyenziweyo inokudityaniswa ukomeleza ukumelana nefuthe.

Kwi-PA6 engaqiniswanga, izinga lokunciphisa liphakathi kwe-1% kunye ne-1.5%. Ukongeza i-fiber yeglasi kunokunciphisa ukucutheka ukuya kwi-0.3% (nangona iphezulu kancinane kwicala le-perpendicular to flow). Izinga lokugqibela lokucutheka liphenjelelwa ikakhulu yikristale kunye nokufunxa ukufuma.

Inqaku lesi-6: Umahluko kwiiNkqubo ze-Injection Molding ye-PA6 kunye ne-PA66

1. Ukomisa unyango:

• I-PA6 ifunxa ukufuma ngokulula kakhulu, ngoko ke ukomisa kwangaphambili kubalulekile.
  • Ukuba imathiriyeli inikezelwe kwipakethe engangenwa kukufuma, gcina isikhongozeli sivaliwe.
  • Ukuba ukufuma kungaphezulu kwe-0.2%, yomise emoyeni oshushu kwi-80 ° C okanye ngaphezulu kweeyure ezi-3-4.
  • Ukuba ubonakaliswe emoyeni ngaphezu kweeyure ze-8, ukomisa i-vacuum kwi-105 ° C kwiiyure ze-1-2 kucetyiswa.
  • Isixhobo esomisa umswakama siyacetyiswa.
• I-PA66 ayifuni ukomiswa ukuba impahla ivalwe ngaphambi kokuba iqhutywe.
  • Ukuba isikhongozeli sokugcina sivuliwe, somise kumoya oshushu kuma-85°C.
  • Ukuba ubumanzi budlula i-0.2%, ukomisa nge-vacuum kwi-105 ° C kwiiyure ezi-1-2 kuyimfuneko.
  • Isixhobo esomisa amanzi siyacetyiswa.

2. Ubushushu bokuBumba:

• PA6: 260-310 ° C (kumabanga aqinisiweyo: 280-320 ° C).
• PA66: 260-310 ° C (kumabanga aqinisiweyo: 280-320 ° C).

  More info., pls contact lucy@taifeng-fr.com