Lub kauv raj yog qhov ua rau tawg hauv kev kho cua sov kom txias. Ua tib zoo saib xyuas cov no thaum lub sij hawm tsim khoom, uas tuaj yeem zam kev tawg.
1. Tom qab quenching, koj yuav tsum rov qab nyob rau hauv lub sij hawm. Ntau Q345B kauv steel kav tsis yog tshwm sim los ntawm quenching thiab txias txheej txheem, tab sis tom qab raug tshem tawm ntawm lub quenching nruab nrab, nws tshwm tom qab ib lub sij hawm ntawm lub sij hawm, uas yog, lub thiaj li hu ua timeliness tawg. Qhov no yog vim muaj kev ntxhov siab loj. Yog tias qhov kev kho hluav taws tau ua tiav tam sim tom qab quenching, nws tuaj yeem tiv thaiv qhov tshwm sim ntawm qhov tawg raws sijhawm.
2. Tus kheej-ignition yuav tsum tau siv los siv cov quenching seem cua sov rau cov kab nrib pleb, uas tuaj yeem tiv thaiv cov khoom ntawm Q345B kauv steel raj quenching tawg.
3. Siv cov quenching kub thiab lub sij hawm luv luv. Rau siab-alloy steel, Q345B kauv steel yeeb nkab ua tsis zoo, yog li nws yuav tsum tau ua kom sov siab (ib lossis ntau zaus).
4. Rau qhov chaw uas yooj yim rau quench (xws li threaded qhov, npoo, grooves, thiab lwm yam), koj yuav tsum siv pob zeb paj rwb ropes los ntsaws los yog qhwv nws nrog hlau. Ua rau q345B kauv steel yeeb nkab.
5. Xaiv qhov nruab nrab uas maj mam txias thiab siv Q345B kauv steel yeeb nkab nrog roj-cooled txias kom tsis txhob txias hauv dej; tswv lub sij hawm ntawm txias qhov nruab nrab, feem ntau txias rau thaj tsam ntawm Q345B kauv steel kav. Kev tsim cov kab nrib pleb tuaj yeem siv los ua qhov nruab nrab txias uas tuaj yeem siv los ua cov kua dej txias, uas tuaj yeem tiv thaiv kev pheej hmoo ntawm cov khoom nyuaj los ntawm quenching cov kab nrib pleb.
