Cov pwm kub tuaj yeem teem rau 40 degree. Qhov ntev ntawm tus khiav yuav tsum yog luv luv thiab txoj kab uas hla yuav tsum loj kom txo tau lub siab poob thiab hloov qhov tuav lub siab mus rau kab noj hniav. Lub rooj vag luv, qhov zoo dua, qhov tuag-txiav nto yuav tsum yog puag ncig, txoj kab uas hla ntawm lub nozzle yuav tsum yog tsawg kawg yog 6 hli, nws yuav tsum yog conical, thiab lub kaum sab hauv yuav tsum yog 5 degree.
Qhov tuag txiav saum npoo ntawm sprue kuj yuav tsum yog puag ncig, uas yog ua ke nrog qhov txias slug zoo. Lub sprue thiab lub rooj vag txuas nrog lub vojvoog ntawm qhov chaw txiav, thiab txoj kab uas hla tuaj yeem yog 7 hli.
Lub rooj vag yuav tsum tau txuas nrog cov khoom yas nrog lub voj voog sib npaug, qhov luv dua qhov zoo dua, thiab qhov tuag-txiav nto yuav tsum du.
Qhov tseem ceeb ntawm lub qhov dej txias txias, uas tiv thaiv cov khoom siv semi-solidified los ntawm kev nkag mus rau hauv pwm kab noj hniav, feem ntau tsis saib xyuas.
Txoj hauj lwm ntawm lub rooj vag yuav tsum raug, kom cov khoom ntws zoo ntawm tus khiav, thiab yuav tsis nyob hauv cov ces kaum ntse, tawg thiab cov kab hlau, thiaj li tsis txhob compression lossis decompression, thiab tus khiav yuav tsum tau ceev thiab du. .
Cov pwm yuav tsum tau muab pov rau hauv cov hlau tsis muaj steel, nrog cov ntsiab lus chromium tsawg kawg yog 13 feem pua, nyiam dua 16 feem pua, thiab Rockwell hardness tsawg kawg yog 55. Cov pwm steel tuaj yeem ua chrome-plated rau kev tiv thaiv.
Tom qab ntau lawm, siv cov lye me me los ua tib zoo ntxuav cov pwm saum npoo thiab tom qab ntawd txau nrog cov tshuaj tsuag roj lossis cov tshuaj silicon.