Cov kauj ruam tseem ceeb tshaj plaws hauv kev tsim cov bolts muaj zog

Cov qib siab bolt uas tsim los ntawm peb lub Hoobkas suav nrog metric 8.8, 10.9, 12.9, ASTM tus qauvUNC Gr5,8 qib. Cov txiv ntseej muaj zog muaj xws li metric 8 thiab 10 qib, thiab ANSI tus qauv qib 5 thiab G8, tag nrho cov uas yuav tsum tau kho cua sov

quenching thiab tempering yog hais txog cov txheej txheem kev kho cua sov siv los txhim kho cov khoom siv hluav taws xob zoo ntawm cov ntaub ntawv hlau. Tom qab quenching, nws raug rau high-temperature tempering kho. Lub hom phiaj yog ua kom muaj kev sib xyaw ua ke zoo ntawm lub zog thiab lub zog hauv cov khoom siv hlau, nrog rau lub zog siab thiab zoo heev toughness, plasticity, txiav kev ua tau zoo, thiab lwm yam. Qee cov hlau alloy lossis cov hlau tsis tshua muaj hlau yuav tsum tau quenching thiab tempering kom tau txais cov khoom zoo, thiab cov hlau no tuaj yeem hu ua quenched thiab tempered steels. Tom qab quenching thiab tempering kev kho mob, ductile hlau tsis tsuas yog txhim kho lub zog, tab sis kuj txhim khu hardness thiab hnav tsis kam.

piav qhia luv luv
quenching thiab tempering kev kho yog hais txog ob txoj kev kho cua sov ntawm quenching thiab high-temperature tempering, uas yog lub hom phiaj ua kom cov workpiece muaj cov khoom zoo txhua yam. Kub kub tempering yog hais txog tempering ntawm 500-650 ℃. Feem ntau quenched thiab tempered qhov chaw ua hauj lwm nyob rau hauv kuj loj dynamic loads, bearing cov teebmeem ntawm nro, compression, dabtsi yog khoov, torsion, los yog shear. Qee qhov chaw kuj muaj kev sib txhuam, xav tau qee yam hnav tsis kam, thiab lwm yam. Nyob rau hauv luv luv, qhov chaw ua hauj lwm nyob rau hauv ntau yam composite stresses. Cov hom ntawm cov khoom no feem ntau yog cov yam ntxwv ntawm ntau lub tshuab thiab cov txheej txheem, xws li shafts, txuas rods, bolts, gears, thiab lwm yam. Lawv tau siv dav hauv kev tsim khoom lag luam xws li tshuab cuab yeej, tsheb, thiab tsheb laij teb. Tshwj xeeb tshaj yog rau cov khoom loj hauv kev tsim cov tshuab hnyav, quenching thiab tempering kho feem ntau yog siv. Yog li ntawd, tempering kho plays lub luag haujlwm tseem ceeb hauv kev kho cua sov. Cov kev xav tau kev ua haujlwm rau quenched thiab tempered qhov chaw hauv cov khoom siv tshuab sib txawv nyob ntawm lawv cov kev ntxhov siab. Feem ntau hais lus, ntau yam quenched thiab tempered qhov chaw yuav tsum muaj cov khoom siv zoo heev, uas yog, kev sib xyaw tsim nyog ntawm lub zog siab thiab siab tawv, kom ntseeg tau tias lub sijhawm ua haujlwm du ntawm cov khoom.
Cov kauj ruam thiab cov ntsiab cai
quenching yog thawj kauj ruam txheej txheem, thiab cov cua kub kub nyob ntawm qhov muaj pes tsawg leeg ntawm cov hlau. Qhov nruab nrab quenching yog xaiv raws li lub peev xwm harden ntawm cov hlau thiab qhov loj ntawm cov khoom siv hlau. Tom qab quenching, steel muaj kev ntxhov siab sab hauv thiab yog nkig heev. Tempering yog tsim nyog los tshem tawm kev ntxhov siab, ua kom tawv nqaij, thiab kho lub zog. Tempering yog cov txheej txheem tseem ceeb tshaj plaws rau kev tsim cov khoom siv hluav taws xob ntawm quenched thiab tempered steel. Qhov nkhaus ntawm ntau yam steel mechanical zog hloov nrog tempering kub, tseem hu ua tempering nkhaus ntawm steel, yuav siv tau raws li lub hauv paus rau xaiv tempering kub. Rau qhov kub-kub tempering ntawm tej alloy quenched thiab tempered steels, yuav tsum tau them nyiaj mloog mus rau tiv thaiv qhov tshwm sim ntawm lub thib ob hom tempering brittleness los xyuas kom meej cov kev ua tau zoo ntawm cov hlau.
daim ntawv thov
quenching thiab tempering kev kho mob yog dav siv rau cov yam ntxwv qhov chaw uas yuav tsum tau zoo heev kev ua tau zoo, tshwj xeeb tshaj yog rau kev ua hauj lwm nyob rau hauv alternating loads, xws li tsheb shafts thiab zog, turbine shafts thiab compressor discs ntawm aircraft engine, thiab lwm yam. Cov yam ntxwv steel qhov chaw uas yuav tsum tau induction cua sov quenching yog feem ntau quenched thiab quenched nto yog uniformed ua ntej. muaj txiaj ntsig zoo rau txheej txheej tawv tawv thiab tuaj yeem ua tiav cov khoom siv kho tshuab zoo hauv cov tub ntxhais. Nitrided qhov chaw uas raug quenching thiab tempering kho ua ntej nitriding tuaj yeem txhim kho kev ua haujlwm ntawm cov hlau thiab npaj cov qauv rau nitriding. Txhawm rau kom ua tiav qhov zoo ntawm cov cuab yeej ntsuas ua ntej quenching, tshem tawm kev ntxhov siab los ntawm kev ua haujlwm ntxhib, txo quenching deformation, thiab ua kom lub hardness tom qab quenching siab thiab uniform, quenching thiab tempering kev kho mob yuav tsum tau nqa tawm ua ntej precision machining. Rau cov cuab yeej steel nrog network carbides los yog coarse nplej tom qab forging, quenching thiab tempering kev kho mob yuav siv tau los tshem tawm cov carbide network, refine cov nplej, thiab txhim kho lub machinability los ntawm spheroidizing lub carbides, npaj cov microstructure rau kev kho cua sov zaum kawg.
Kev siv tshuab
Cov txheej txheem kev kho cua sov ntawm cov hlau muaj xws li cov txheej txheem xws li annealing, normalizing, quenching, tempering, thiab deg tshav kub kho. Ntawm lawv, tempering muaj xws li high-temperature tempering, nruab nrab kub tempering, thiab
Tsawg kub tempering. Reheating quenched steel rau ib qho kub thiab txias nws siv ib txoj kev hu ua tempering. Lub hom phiaj yog kom tshem tawm cov kev ntxhov siab sab hauv tsim los ntawm quenching, txo hardness thiab brittleness, thiab ua tiav qhov kev xav tau

mechanical zog.
Quenching thiab tempering feem ntau yog hais txog cov txheej txheem kev kho cua sov ntawm quenching thiab high-temperature tempering kom tau tempered martensite. Txoj kev yog thawj quench, nrog rau quenching kub ntawm Ac3 + 30-50 ℃ rau hypoeutecoid steel; Eutectoid steel yog Ac1 + 30 ~ 50 ℃; Alloy steel tuaj yeem txhim kho me ntsis piv rau carbon steel. Tom qab quenching, tempering tuaj yeem nqa tawm ntawm 500-650 ℃.
Quenched thiab tempered steel
Lub npe hu ua quenched thiab tempered steel feem ntau yog hais txog nruab nrab carbon steel nrog cov ntsiab lus carbon ntawm 0.3-0.6%. Cov khoom ua los ntawm cov hlau no feem ntau xav tau cov khoom siv kho tshuab zoo, uas yog, tuav lub zog siab thaum tseem muaj cov yas zoo thiab tawv. Tib neeg feem ntau siv kev kho kho kom ua tiav lub hom phiaj no, yog li tib neeg ib txwm xa mus rau hom hlau no li quenched thiab tempered steel. Nws yuav tsum raug sau tseg tias qee zaum quenched thiab tempered steel kuj hais txog cov txheej txheem ntawm kev ntxiv manganese thiab silicon thaum lub sij hawm smelting ntawm hlau, thiab yuav tsum tau them nyiaj rau qhov sib txawv.

Ningbo Zhongli bolts manufacturing co.ltd muaj nws tus kheej cov khoom siv kho cua sov uas tso cai rau peb los tswj peb tus kheej zoo, uas yog tus phooj ywg zoo rau cov neeg siv khoom nrog cov kev xav tau zoo. Tom qab kev kho cua sov, peb yuav sim qhov hardness, tensile lub zog, thiab elongation ntawmbolts thiab txiv ntseejPeb muaj peb tus kheej kuaj kuaj. Peb tsuas yog tsim GB, DIN, ASTM siab zog bolts thiab ceev. Xws li hexagonal bolts GB5782/5783, DIN931/933, DIN912, DIN6914, EN14399, A325, A193 B7, 2H txiv ntseej, Hexagonal txiv ntseejDIN934, DIN6915, A563, Flat ncoo DIN125, DIN6916, F436.