Ubude besikhathi sokucindezela kwesikhunta se-carbide esine-cemented sinethonya elikhulu ekusebenzeni kwezingxenye zepulasitiki

Lapho ukucindezela ukubunjwa kwamaplastiki e-thermosetting kuisikhunta se-carbide esisimende, kufanele zigcinwe ezingeni lokushisa elithile kanye nokucindezela isikhathi esithile ukuze zinqamule ngokugcwele futhi ziqinise zibe izingxenye zepulasitiki ezisebenza kahle kakhulu. Lesi sikhathi sibizwa ngokuthi isikhathi sokucindezela. Isikhathi sokucindezela sihlobene nohlobo lwepulasitiki (uhlobo lwe-resin, okuqukethwe okuguquguqukayo, njll.), ukuma kwengxenye yepulasitiki, izimo zenqubo yokubunjwa kokucindezela (izinga lokushisa, ingcindezi), kanye nezinyathelo zokusebenza (noma ngabe ukukhipha, ukucindezela kwangaphambili, ukushisa kwangaphambili), njll. Njengoba izinga lokushisa lokucindezela ukucindezela landa, ipulasitiki iqina ngokushesha futhi isikhathi sokucindezela esidingekayo siyancipha. Ngakho-ke, umjikelezo wokucindezela uzokwehla njengoba izinga lokushisa lesikhunta likhula. Umthelela wengcindezi yokubumba ukucindezela ngesikhathi sokubumba awubonakali njengokushisa kokubumba, kodwa njengoba ingcindezi ikhula, isikhathi sokucindezela sizokwehla kancane. Njengoba ukushisa kwangaphambi kokushisa kunciphisa ukugcwaliswa kwepulasitiki kanye nesikhathi sokuvula isikhunta, isikhathi sokucindezela sifushane kunangaphandle kokushisa. Ngokuvamile isikhathi sokucindezela siyakhula njengoba ukushuba kwengxenye yepulasitiki kukhula.

Ubude besikhathi sokucindezela kwesikhunta se-carbide esine-cemented sinethonya elikhulu ekusebenzeni kwezingxenye zepulasitiki. Uma isikhathi sokucindezela sisifushane kakhulu futhi ipulasitiki ingaqinile ngokwanele, ukubukeka kanye nezakhiwo zemishini yezingxenye zepulasitiki zizowohloka, futhi izingxenye zepulasitiki zizokhubazeka kalula. Ukwandisa kahle isikhathi sokucindezelwa kunganciphisa izinga lokuncipha kwezingxenye zepulasitiki futhi kuthuthukise ukumelana nokushisa nezinye izakhiwo ezingokomzimba nezomshini zesikhunta se-carbide. Kodwa-ke, uma isikhathi sokucindezela siside kakhulu, ngeke nje sinciphise ukukhiqiza, kodwa futhi sandise izinga lokuncipha kwengxenye yepulasitiki ngenxa yokuxhuma ngokweqile kwe-resin, okuholela ekucindezelekeni, okuholela ekunciphiseni kwezakhiwo zemishini yengxenye yepulasitiki, futhi ezimweni ezinzima, ingxenye yepulasitiki ingase iqhume. Kumapulasitiki ajwayelekile e-phenolic, isikhathi sokucindezela imizuzu engu-1 kuya kwemi-2, kanti kumapulasitiki abicah, kuthatha imizuzu emi-2 kuye kwengama-7.

Yiziphi izimiso zokukhetha izinto zokubumba ze-carbide zikasimende?

I-1) Izidingo zokusebenza zesikhunta se-carbide kufanele zihlangatshezwe. Kumele ibe namandla okwanele, ubulukhuni, ipulasitiki, ukuqina, njll ukuhlangabezana nezimo zokusebenza, izindlela zokuhluleka, izidingo zokuphila, ukwethembeka, njll kwesikhunta se-carbide.

I-2) Izinto ezikhethiwe kufanele zibe nezakhiwo ezinhle zokucubungula ngokusho kwezinqubo ezahlukene zokukhiqiza.

3) Isimo sokuhlinzekwa kwemakethe kufanele sicatshangelwe. Izinsiza zemakethe kanye nesimo sangempela sokuhlinzekwa kufanele kubhekwe. Zama ukuxazulula inkinga ekhaya ngokungenisa okuncane, futhi izinhlobonhlobo kanye nokucaciswa kufanele kugxile kakhulu.

I-4) Ukubunjwa kwe-Carbide kufanele kube ukonga futhi kunengqondo, futhi uzame ukusebenzisa izinto ezinenani eliphansi ezihlangabezana nezimo zokusebenza nokusetshenziswa.