iindaba

Precision umbhobho eliqaqambileyo uhlobo ngobuciko eliphezulu izinto umbhobho zentsimbi leyo lwenziwa yi umzobo ocoliweyo okanye ebandayo rolling.Because udonga ngaphakathi nangaphandle ityhubhu ngqo eqaqambileyo akukho umaleko igcwala, akukho ukuvuza phantsi koxinzelelo oluphezulu, ngqo phezulu, phezulu, akukho deformation kukugoba okubandayo, flaring, flattening kwaye akukho crack, njl., Isetyenziselwa ukuvelisa iimveliso zomoya okanye izixhobo ze-hydraulic, ezinje ngesilinda okanye isilinda, inokuba ityhubhu engenamthungo, kukwakho nombhobho odibeneyo. Ukuchaneka kwetyhubhu eqaqambileyo kubandakanya uC, Si, Mn, S, P, Cr.

Precision

1.Intshayelelo kwezobuchwephesha

Umgangatho ophezulu wentsimbi yekhabhoni, ukuqengqeleka kakuhle, unyango olungafakwanga i-oxidation (urhulumente we-NBK), uvavanyo olungenakonakalisa, udonga lwangaphakathi lombhobho wentsimbi lukhuhlwe sisixhobo esikhethekileyo kwaye luhlanjwe ngoxinzelelo oluphezulu, umbhobho wentsimbi uphathwa ngeoyile ye-antirust, kwaye zombini iziphelo zecwecwe ziphathwa ngothuli.

2.Ezona mpawu ziphambili:

Udonga lwangaphakathi nolwangaphandle lombhobho wentsimbi lunokuchaneka okuphezulu kunye nokugqiba okuphezulu. Emva konyango lobushushu, umbhobho wentsimbi awunalo ugcino lwe-oxidation, kwaye udonga lwangaphakathi lunokucoceka okuphezulu. Umbhobho wentsimbi uthwala uxinzelelo oluphezulu, awukhubeki ekugobeni okubandayo, kwaye awunangqhekeka evuthayo kunye neflethi.Umbala wetyhubhu yentsimbi: umbala omhlophe ngokuqaqamba, ngokuqaqamba kwesinyithi.

3.Eyona njongo iphambili

Iimoto, iinxalenye zoomatshini, njl, ezinemfuno ephezulu yokuchaneka kunye nokugqitywa kwemibhobho yentsimbi.Ukulungisa abasebenzisi bombhobho wentsimbi ayisiyiyo eyokuchaneka kuphela, iimfuno zokuguda ngabasebenzisi abaphezulu, ngenxa yokuchaneka okuphezulu kombhobho oqaqambileyo, ukunyamezelana kunokuba igcinwe ngocingo olu-2-8, abasebenzisi abaninzi abasebenza ngomatshini ukuze kugcinwe abasebenzi, izinto, ukulahleka kwexesha, umbhobho wesinyithi ongenamthungo okanye isinyithi esijikelezileyo siguqulwa kancinci saba ngumbhobho oqaqambileyo.

4.Ubukrakra bomsindo

Emva kokucima ulwakhiwo lwe-martensite, ityhubhu eqaqambileyo ethe tyaba yafakwa kumgangatho wobushushu we-450 ~ 600 ℃ .Okanye kwi-650 ℃ emva kokubila kwinqanaba lokupholisa ngokucothayo emva kwe-350 ~ 600 Or; Okanye emva kokudinwa kwi-650 ℃, ukufudumeza ixesha elide kuluhlu lobushushu lwama-350 ~ 650 ℃ lwenza ukuba kube nokugqwesa umbhobho oqaqambileyo. Ukuba i-20 # umbhobho wentsimbi ochanekileyo uyayifudumeza iye kwi-650 ℃ kwaye emva koko iphole ngokukhawuleza, inokubuyisela ubulukhuni, ke ikwabizwa ngokuba yi% 26ldquo; Ubushushu bomsindo obuguquliweyo% 26rdquo; Ubungqindilili beqondo lobushushu obuphezulu kukuqina kokuqaqamba okuthe ngqo ityhubhu kunye nokunyuka kobushushu bokutshintsha kobushushu.Ukuphakama kobushushu beqondo lobushushu.Ubuntununtunu buchazwa njengomahluko phakathi kweqondo lokutshintsha kwe-ductile kunye nobushushu (% 26Delta; T) ukubonisa ukuba ukuphakama kobushushu obuphezulu obuphezulu, kokuphakama kwenani ukwaphuka kwamanqwanqwa kukwaphuka kwetyhubhu eqaqambileyo echanekileyo.

Iziphumo zezinto kwityhubhu eqaqambileyo eqaqambileyo kwiqondo lobushushu eliphezulu lokuqaqamba kobushushu kwahlulwe kwaba :( 1) izinto zokungahlambuluki ezifana ne-phosphorus, i-tin, i-antimony, njalo njalo, ebangela ukuba ubushushu obuphezulu bobushushu betyhubhu eqaqambileyo echanekileyo. (2) Izinto zokudibanisa izinto ezikhuthaza okanye ezicothisa ubushushu obuphezulu bobushushu kwiifom ezahlukeneyo nakwiidigri ezahlukeneyo I-chromium, i-manganese, i-nickel, i-silicon, njalo njalo, idlala indima yokukhuthaza, ngelixa i-molybdenum, i-tungsten, i-titanium njalo njalo idlala indima yokulibaziseka.Ikhabhoni nayo idlala indima yokuthintela. isidanga se-alloy okanye i-multicomponent alloy steels equkethe i-chromium, i-manganese, i-nickel kunye ne-silicon yahlukile ngohlobo kunye nomxholo wezinto zokudibanisa izinto.

Umgangatho wobuthathaka bokwakhiwa kwentsimbi yentsimbi ngokuthe gca kubushushu obuphezulu bentsimbi ngokucacileyo yahlukile.Ulwakhiwo lobushushu obushushu beMartensite lolona luvo lukhulu kubushushu obuphezulu bomsindo, ubushushu obunamandla obunobushushu obuphezulu yinto yesibini, ipearlite Ubuncinci ubume.

Ubungakanani beqondo lobushushu obuphezulu kunye nokuqaqamba kwetyhubhu eqaqambileyo ngokubanzi kukholelwa ukuba sisiphumo sokwamkelwa komda wokutya okuziinkozo okubangelwe lucalucalulo lwezinto ezingahlambulukanga ezinje nge-P, Sn, Sb kunye ne-As kumda wokuqala wokutya okuziinkozo. , i-nickel, i-chromium kunye nezinye izinto ezinento yokwenza nokungahlambuluki kwezi zinto zingasentla zenzeka kumda wokutya okuziinkozo, okhuthaza ukutyeba kwezinto ezingafunekiyo kunye nokukhawulezisa ukwamkelwa.Ngokwahlukileyo koko, i-molybdenum inonxibelelwano olomeleleyo nezinto ezingcolileyo ezinje nge-phosphorus, enokuvelisa ukucutha isigaba kwingqolowa kunye nokuthintela ukwahlulwa komda weenkozo ze-phosphorus, kwaye kunokunciphisa izinto ezinqabileyo zomhlaba ezinamaqondo obushushu aphezulu.Ti inokukhuthaza ngokufanelekileyo ngakumbi ukugcwala kwezinto ezingcolileyo ezifana ne-phosphorus kwingqolowa, ngaloo ndlela buthathaka ulwahlulo lomda wokutya okuziinkozo Izinto zokungahlambuluki kunye nokunciphisa isantya sobushushu obushushu obuphezulu.

Amanyathelo okunciphisa ukuqina kobushushu obuphezulu beetyhubhu eziqaqambileyo zezi zilandelayo :(1) emva kobushushu obuphezulu, ukupholisa ngeoyile okanye ukupholisa ngokukhawuleza ngamanzi ukuthintela ukwahlulwa kwezinto ezingcolileyo kwimida yeenkozo; (2) Xa umxholo we-molybdenum kwisinyithi unyuka uye kwi-0.7%, utyekelo lobushushu obuphezulu kuncitshiswe kakhulu. Xa umxholo we-molybdenum kwisinyithi ugqitha lo mda, ii-carbides ezikhethekileyo ezityebileyo kwi-molybdenum zenziwa kumbhobho wentsimbi wama-20 # ochanekileyo. Xa umxholo we-molybdenum kwi-matrix uyancipha, utyekelo lokufakwa kumbhobho oqaqambileyo luyanda. (3) ukunciphisa umxholo wezinto ezingahlambulukanga kwi-20 # ngqo yombhobho wentsimbi; (4) Amalungu asebenza kubushushu obuphezulu indawo ixesha elide, kunzima ukukhusela ukufakwa ngokungongeza i-molybdenum yodwa. Kuphela ngokunciphisa umxholo wezinto ezingahlambulukanga kwi-20 # ngqo ityhubhu yentsimbi, ukuphucula ubunyulu betyhubhu eqaqambileyo eqaqambileyo, kunye nokuyidibanisa nokudityaniswa kwealuminiyam kunye nezinto ezinqabileyo zomhlaba, apho ukuthintela ubushushu obuphezulu kunokuthintelwa ngokufanelekileyo.
Precision-2

Ubume bokunikezelwa kwezixhobo ezisemgangathweni

Umgangatho ophambili: GB / T3639, DIN2391-94 / C, DIN2445, EN10305, DIN1630, DIN1629, ASTM A106, ASTM A179, JIS G3445

Izinto eziphambili: 10 #, 20 #, 35,45,40 Cr, 25 mn. 37 mn5, St35 (E235), St37.4, St45 (E255), St52 (E355)

Isimo esiphambili sokuhambisa: NBK (+ N), i-GBK (+ A), i-BK (+ C), i-BKW (+ LC), i-BKS (+ SR)


Ixesha lokuposa: Mar-04-2021