Koj puas tau kawm txog qib zog ntawm kev sib xyaw ua ke screws? Kev sib xyaw ua ke sib txawv muaj cov qib sib txawv. Muaj ntau lub teb chaws tus qauv rau kev sib xyaw ua ke ntawm cov ntsia hlau, thiab yuav muaj qhov sib txawv ntawm qib siab zog. Combination screws yog tsis muaj kev zam. Lub zog qib ntawm cov ntsia hlau sib xyaw ua ke yog qhov txawv raws li cov khoom siv raw ntawm cov ntsia hlau hlau thiab lub hom phiaj hardness ntawm cov ntsia hlau hlau. Cov khoom siv sib xyaw ua ke dav dav tau muab faib ua cov hlau tsis muaj steel thiab hlau, thiab cov hlau tsis muaj steel tau muab faib ua stainless hlau 201, stainless hlau 304 thiab stainless hlau 316. Hlau muab faib ua peb hom: carbon steel tsawg, nruab nrab carbon steel, thiab high carbon steel. .
Carbon steel ua ke screws xa mus rau hlau ua ke screws. Feem ntau, cov hlau sib xyaw ua ke tau muab faib ua qib 4.8, 8.8, 10.9 thiab 12.9. Txawm li cas los xij, kev sib xyaw ua ke ntawm qib 10.9 thiab qib 12.9 tsis tshua siv hauv khw, yog li peb yuav tsis tham txog lawv ntawm no. Thiab kev sib xyaw ua ke ntawm cov khoom lag luam feem ntau siv ua ke cov ntsia hlau ntawm qib 4.8 thiab 8.8.
4.8 qib ua ke screws feem ntau yog ua los ntawm 1010A ntsia hlau hlau rods. Tom qab cov ntsia hlau hlau rods raug ntaus rau hauv cov ntsia hlau, lawv tau ua ke nrog lub caij nplooj ntoos hlav tiaj tus ntxhua khaub ncaws. Tom qab ntau lawm, qhov no 4.8 qib ua ke ntsia hlau tsis tas yuav hardened. Nws hardness tuaj yeem ncav cuag 4.8.
8.8 qib ua ke screws feem ntau yog ua los ntawm cov ntsia hlau hlau 10B21 piers. Tom qab cov ntsia hlau thiab hlau piers tau ua rau hauv cov ntsia hlau, lawv tau nruab nrog lub caij nplooj ntoos hlav ntxhua khaub ncaws thiab lub tshuab ntxhua khaub ncaws. Lawv tuaj yeem dhau los ntawm lub tshuab tsis siv neeg elastic tiaj tus ntxhua khaub ncaws los txhuam peb daim ua ke. Fasten lub caij nplooj ntoos hlav-pas ntxhua khaub ncaws ua ke ntawm cov ntsia hlau, thiab lub caij nplooj ntoos hlav-pas ntxhua khaub ncaws yuav tsis poob. Tom qab cov ntsia hlau ua ke yog tsim, nws yuav tsum tau ua kom tawv kom lub hardness ncav cuag 8.8. Tom qab lub hardness ncav cuag 8.8, peb yuav tsum tau coj nws rau electroplating. Yuav kom tsis txhob muaj hydrogen embrittlement ntawm lub caij nplooj ntoos hlav ntxhua khaub ncaws nyob rau hauv 8.8-theem ua ke ntsia hlau nrog ntxiv hardness, nws yog ib qho yooj yim mus tawg. Nyob rau hauv txoj kev no, peb yuav tsum tau ua kev kho mob tshem tawm hydrogen ntawm lub hardened ua ke screws, uas yuav tsum tau electroplated tsuas yog tom qab lub hydrogen tshem tawm.
Nyob rau hauv ib lo lus, muaj ntau ntau yam ntawm cov qauv qib siab zog ntawm kev sib xyaw screws, tab sis feem ntau tsuas yog ob hom siv nyob rau hauv kev ua lag luam, ib qho yog 4.8-theem ua ke ntsia hlau lub zog, thiab lwm yam yog 8.8-theem ua ke ntsia hlau lub zog. 4.8-theem sib xyaw ua ke screws yog siv ntau tshaj plaws hauv kev ua lag luam thiab cov neeg siv khoom xav tau, thiab qhov ntsuas ntawm daim ntawv thov yog dav. Raws li rau tus qauv lub zog ntawm 8.8-theem ua ke screws, peb feem ntau xa mus rau 8.8-theem hexagon socket taub hau ua ke screws, 8.8-theem lauj kaub taub hau ua ke screws, thiab 8.8-theem sab nraud hexagon ua ke screws. Peb cov no feem ntau siv.