Ungayichonga njani nokukhetha ngokuchanekileyo phakathi kwe-PA6 eguquliweyo kunye ne-PA66 (Icandelo lesi-2)?

Ingongoma 5: Ungakhetha njani phakathi kwe-PA6 kunye ne-PA66?

1. Xa kungekho mfuneko yokumelana nobushushu obuphezulu obungaphezulu kwe-187°C, khetha i-PA6+GF, kuba ingabizi kakhulu kwaye kulula ukuyicubungula.
2. Kwizicelo ezifuna ukumelana nobushushu obuphezulu, sebenzisa i-PA66+GF.
3. I-HDT (Ubushushu bokuTshintsha kobushushu) ye-PA66+30GF yi-250°C, ngelixa eye-PA6+30GF iyi-220°C.

I-PA6 ineempawu zeekhemikhali nezomzimba ezifana ne-PA66, kodwa inendawo yokunyibilika ephantsi kunye nomgangatho obanzi wobushushu bokucubungula. Inika ukumelana okungcono kwempembelelo kunye nokumelana nesinyibilikisi kune-PA66 kodwa inokufunxwa komswakama okuphezulu. Ekubeni iimpawu ezininzi zomgangatho wezinto zeplastiki zichaphazeleka kukufunxwa komswakama, oku kufuneka kuqwalaselwe ngononophelo xa kuyilwa iimveliso ezine-PA6.

Ukuqinisekisa iipropati zoomatshini ze-PA6, kudla ngokufakwa iimodifiers ezahlukeneyo. I-fiber yeglasi sisongezelelo esiqhelekileyo, kwaye irabha yokwenziwa nayo inokufakwa ukuphucula ukuxhathisa impembelelo.

Kwi-PA6 engaqiniswanga, izinga lokuncipha liphakathi kwe-1% kunye ne-1.5%. Ukongeza i-fiber yeglasi kunokunciphisa ukuncipha ukuya kwi-0.3% (nangona iphezulu kancinci kwicala elithe nkqo ukuya ekuphumeni). Inqanaba lokugqibela lokuncipha liphenjelelwa kakhulu yikristale kunye nokufunxwa komswakama.

Ingongoma 6: Umahluko kwiinkqubo zokubumba inaliti kwi-PA6 kunye ne-PA66

1. Unyango Lokomisa:

• I-PA6 ifunxa umswakama ngokulula kakhulu, ngoko ke ukomisa ngaphambi kokuba kucutshungulwe kubalulekile.
  • Ukuba le nto ifumaneka kwiphakheji engangenisi manzi, gcina isitya sivaliwe.
  • Ukuba umswakama udlula i-0.2%, yomise emoyeni oshushu kwi-80°C okanye ngaphezulu iiyure ezi-3–4.
  • Ukuba ibekwe emoyeni ixesha elingaphezulu kweeyure ezi-8, ukomisa nge-vacuum kwi-105°C kangangeyure e-1-2 kuyacetyiswa.
  • Kucetyiswa ukuba umatshini wokomisa osusa ubumanzi.
• I-PA66 ayifuni ukomiswa ukuba izinto zivaliwe ngaphambi kokuba zicutshungulwe.
  • Ukuba isitya sokugcina sivuliwe, somise emoyeni oshushu kwi-85°C.
  • Ukuba umthamo womswakama udlula i-0.2%, kufuneka ukomise nge-vacuum kwi-105°C kangangeyure e-1-2.
  • Kucetyiswa isixhobo sokomisa esisusa umswakama.

2. Ubushushu bokubumba:

• I-PA6: 260–310°C (kwimigangatho eqinisiweyo: 280–320°C).
• I-PA66: 260–310°C (kwimigangatho eqinisiweyo: 280–320°C).

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