Chinthu chofunika kwambiri pakupanga ma bolts amphamvu kwambiri

Magulu amphamvu kwambiri a bawuti opangidwa ndi fakitale yathu akuphatikiza metric 8.8, 10.9, 12.9, ASTM muyezoUNC Gr5,8 kalasi. Mtedza wamphamvu kwambiri umaphatikizapo ma metric 8 ndi 10, ndi ANSI standard grade 5 ndi G8, zonse zomwe zimafunikira chithandizo cha kutentha.

Kuzimitsa ndi kutentha kumatanthawuza njira yochizira kutentha yomwe imagwiritsidwa ntchito kukonza zida zonse zachitsulo. Pambuyo pozimitsa, imayikidwa ndi chithandizo cha kutentha kwambiri. Cholinga ndi kukwaniritsa kuphatikiza kwabwino kwa mphamvu ndi kulimba m'zigawo zazitsulo, ndi mphamvu zonse zazikulu ndi kulimba kwambiri, pulasitiki, ntchito yodula, ndi zina zotero. Zitsulo za alloy kapena zitsulo zotsika ziyenera kutsekedwa ndi kutenthedwa kuti zipeze katundu wabwino wokwanira, ndipo zitsulozi zikhoza kutchedwanso zitsulo zozimitsidwa ndi zowonongeka. Pambuyo kuzimitsa ndi kutentha mankhwala, ductile chitsulo sangangowonjezera mphamvu, komanso kumapangitsanso kuuma ndi kuvala kukana.

mawu oyamba achidule
Kuzimitsa ndi kutentha mankhwala amatanthauza wapawiri kutentha mankhwala njira kuzimitsa ndi mkulu-kutentha kutentha, amene cholinga chake kuti workpiece ndi wabwino mabuku katundu mawotchi. Kutentha kwakukulu kumatanthauza kutentha pakati pa 500-650 ℃. Ziwalo zozimitsidwa komanso zotenthedwa zimagwira ntchito pansi pa katundu wokulirapo, zokhala ndi zovuta, kupsinjika, kupindika, kugwedezeka, kapena kumeta ubweya. Malo ena amakhalanso ndi mikwingwirima, yomwe imafunika kukana kuvala, ndi zina zotero. Mwachidule, mbalizo zimagwira ntchito pansi pa zovuta zosiyanasiyana. Mitundu yazigawozi makamaka ndi zigawo zamakina a makina ndi njira zosiyanasiyana, monga ma shafts, ndodo zolumikizira, mabawuti, magiya, ndi zina zambiri. Amagwiritsidwa ntchito kwambiri m'mafakitale opangira zinthu monga zida zamakina, magalimoto, ndi mathirakitala. Makamaka pazigawo zazikulu zopanga makina olemera, kuzimitsa ndi kutenthetsa mankhwala amagwiritsidwa ntchito kwambiri. Choncho, kutentha mankhwala kumathandiza kwambiri pa kutentha kutentha. Zofunikira pakuchita zinthu zozimitsidwa komanso zotenthedwa muzinthu zamakina zimasiyana malinga ndi kupsinjika kwawo. Nthawi zambiri, mbali zosiyanasiyana zozimitsidwa komanso zowuma ziyenera kukhala ndi zida zamakina, ndiye kuti, kuphatikiza koyenera kwamphamvu komanso kulimba kwambiri, kuonetsetsa kuti mbalizo zikuyenda bwino.
Masitepe ndi mfundo
Kuzimitsa ndi sitepe yoyamba, ndipo kutentha kwa kutentha kumadalira kapangidwe kazitsulo. Sing'anga yozimitsa imasankhidwa potengera luso lolimba lachitsulo ndi kukula kwa chigawo chachitsulo. Pambuyo pozimitsa, chitsulo chimakhala ndi kupsinjika kwakukulu kwamkati ndipo ndizovuta kwambiri. Kutentha ndikofunikira kuti muchepetse kupsinjika, kukulitsa kulimba, ndikusintha mphamvu. Tempering ndi njira yofunika kwambiri kwa standardizing mawotchi katundu wa kuzimitsidwa ndi kupsa mtima zitsulo. Mphepete mwazinthu zosiyanasiyana zamakina achitsulo zomwe zikusintha ndi kutentha kwapang'onopang'ono, komwe kumadziwikanso kuti kupindika kwachitsulo, kungagwiritsidwe ntchito ngati maziko posankha kutentha kotentha. Kwa kutentha kwapamwamba kwazitsulo zina zozimitsidwa ndi zowonongeka, tcheru chiyenera kuperekedwa pofuna kupewa kupezeka kwa mtundu wachiwiri wa brittleness kuti zitsimikizire kuti chitsulocho chikugwira ntchito.
ntchito
Kuzimitsa ndi kutentha mankhwala chimagwiritsidwa ntchito mbali structural kuti amafuna kwambiri mabuku ntchito, makamaka ntchito pansi alternating katundu, monga mitsinje galimoto ndi magiya, turbine shafts ndi kompresa zimbale za injini za ndege, etc. wosanjikiza komanso amatha kukwaniritsa zinthu zabwino zamakina pachimake. Zigawo za nitrided zomwe zimazimitsidwa ndi kutenthetsa mankhwala musanayambe nitriding zimatha kupititsa patsogolo ntchito yachitsulo ndikukonzekera dongosolo la nitriding. Kuti tikwaniritse kusalala kwapamwamba kwa chida choyezera musanazimitse, kuthetseratu kupsinjika komwe kumayambitsidwa ndi machining ovuta, kuchepetsa kutsekemera kozimitsa, ndikupanga kuuma pambuyo pozimitsa kwambiri ndi yunifolomu, kuzimitsa ndi kutentha kwa mankhwala kungathe kuchitika musanayambe kukonza bwino. Pakuti zitsulo zida ndi maukonde carbides kapena coarse mbewu pambuyo forging, quenching ndi tempering mankhwala angagwiritsidwe ntchito kuthetsa maukonde carbide, yeretsani mbewu, ndi kusintha machinability ndi spheroidizing ndi carbides, kukonzekera microstructure kwa chomaliza kutentha mankhwala.
Processing luso
Kutentha kwachitsulo kumaphatikizapo njira monga annealing, normalizing, quenching, tempering, ndi kutentha kwapamwamba. Pakati pawo, kutentha kumaphatikizapo kutentha kwakukulu, kutentha kwapakati, ndi kutentha
Kutentha kochepa. Kutenthetsanso chitsulo chozimitsidwa mpaka kutentha kwina ndiyeno kuziziritsa pogwiritsa ntchito njira inayake kumatchedwa tempering. Cholinga ndikuchotsa kupsinjika kwamkati komwe kumabwera chifukwa cha kuzimitsa, kuchepetsa kuuma ndi brittleness, ndikukwaniritsa zomwe zikuyembekezeka.

makina katundu.
Kuzimitsa ndi kutentha nthawi zambiri kumatanthauza njira yochizira kutentha kwa kuzimitsa ndi kutentha kwambiri kuti mupeze kutentha kwa martensite. Njirayi ndiyoyamba kuzimitsa, ndi kutentha kozimitsa kwa Ac3 + 30-50 ℃ kwachitsulo cha hypoeutectoid; Eutectoid zitsulo ndi Ac1+30 ~ 50 ℃; Chitsulo cha aloyi chikhoza kusintha pang'ono poyerekeza ndi chitsulo cha carbon. Pambuyo kuzimitsa, kutentha kumatha kuchitika pa 500-650 ℃.
Chitsulo chozimitsidwa ndi chotenthedwa
Chitsulo chotchedwa kuzimitsidwa ndi kupsya mtima nthawi zambiri chimatanthawuza chitsulo chapakati cha mpweya chokhala ndi mpweya wa 0.3-0.6%. Zigawo zopangidwa ndi chitsulo chamtunduwu nthawi zambiri zimafunikira makina abwino ophatikizana, ndiko kuti, kukhalabe ndi mphamvu zambiri komanso kukhala ndi pulasitiki yabwino komanso kulimba. Nthawi zambiri anthu amagwiritsa ntchito njira yosinthira kuti akwaniritse cholinga ichi, kotero anthu amakonda kunena kuti chitsulo chamtunduwu ndi chitsulo chozimitsidwa komanso chokhazikika. Tiyenera kuzindikira kuti nthawi zina zitsulo zozimitsidwa ndi zowonongeka zimatanthawuzanso njira yowonjezera manganese ndi silicon panthawi yosungunula zitsulo, ndipo chidwi chiyenera kulipidwa kusiyana kwake.

Ningbo Zhongli bolts Production co.ltd ili ndi zida zake zochizira kutentha zomwe zimatilola kudziwongolera tokha, zomwe zimakhala zochezeka kwa makasitomala omwe ali ndi zofunikira zapamwamba kwambiri. Pambuyo mankhwala kutentha, tidzayesa kuuma, kumakanika mphamvu, ndi elongation wamabawuti ndi mtedzaTili ndi labotale yathu yoyesera. Timapanga makamaka ma GB, DIN, ASTM mabawuti amphamvu kwambiri ndi mtedza. Kuphatikizapo ma bolt a hexagonal GB5782/5783, DIN931/933,DIN912,DIN6914,EN14399, A325,A193 B7,2H NUTS, Nati wa hexagonalChithunzi cha DIN934, DIN6915,A563, Flat PAD DIN125, DIN6916,F436.