Raws li tam sim no" carbon ncov" thiab" carbon neutralization" cov kev cai, fasteners rau lub teb chaws loj cov cuab yeej tsim khoom xws li tsheb, high-speed railway, aviation, aerospace thiab lub teb chaws tiv thaiv muaj ib qho kev thov ceev rau lub neej ntev thiab ultra-siab zog. Ultra siab zog fasteners tuaj yeem txo qhov hnyav thiab nce qhov chaw teeb tsa los ntawm kev txo lawv tus kheej qhov loj hauv tib lub zog clamping. Yog li ntawd, kev ua haujlwm thiab ntim ntawm cov khoom sib txuas tuaj yeem ua kom zoo, txhawm rau ua kom cov cuab yeej ua tiav lub hom phiaj ntawm kev txo qhov hnyav tag nrho thiab kev ua haujlwm zoo. Cov ntaub ntawv pej xeem qhia tau hais tias cov qib siab tshaj plaws ntawm cov fasteners ntawm kev lag luam txawv teb chaws tau mus txog qib 17.8. Raws li kev tsim kho thoob ntiaj teb, Tuam Tshoj' s 973 qhov project tau tsim 13.9-15.9 fastener cov ntaub ntawv thiabfasteners.
Thaum Lub Kaum Ib Hlis 28, 2021, pab pawg ua haujlwm siab ua haujlwm steel coj los ntawm xibfwb Dong Han ntawm lub tsev kawm ntawv cov ntaub ntawv ntawm Shanghai University, Hebei Longfengshan Casting Co., Ltd., Qifeng Seiko technology Co., Ltd., Zhoushan 7412 Hoobkas, Jiangsu metallurgical thev naus laus zis tshawb fawb lub koom haum, Shanghai University (Zhejiang) high-end khoom siv yooj yim qhov chaw thiab cov ntaub ntawv tshawb fawb lub koom haum thiab lwm yam rau lub koom haum, tom qab ntau tshaj li ib xyoos ntawm kev tshawb fawb sib koom ua ke, dhau qhov kev koom tes ntawm tag nrho cov kev lag luam saw ntawm" kev tsim khoomfastenermanufacturing service evaluation", raws li qhov kev xav tau ntawm cov khoom siv hlau thiab hlau, b17.8 thiab b19.8 steels rau ultra-siab zog fasteners tau ua tiav tiav los ntawm kev siv high-purity hlau raw khoom tsim. los ntawm Longfengshan casting kev lag luam, tsim qib 16.8 thiab 19.8 fastener manufacturing technologies. Lub cev fasteners tau qhia hauv daim duab 1.
Lub cev fasteners ntawm qib 16.8 thiab 19.8 (kev qhia tshwj xeeb: mj8) × ib × 50)
Los ntawm kev ua kom zoo ntawm cov ntaub ntawv thiab cov txheej txheem kev kho cua sov, chav tsev kub tensile lub zog ntawm qib 16.8 thiab 19.8 bolts raws li 1600 ~ 1770mpa thiab 1900 ~ 2070mpa feem. Cov txiaj ntsig ntawm kev xeem shear (raws li GJB 3376-1998) qhia tias qhov kev nyuaj siab ntawm qib 16.8 thiab 19.8 bolts ncav cuag 97kn thiab 115KN feem; chav ntsuas kub tensile qaug zog lub zog kuaj (raws li GJB 3376-1998 thiab gjb715.30a-2002, load ratio=0.1) Cov txiaj ntsig tau pom tias cov tsim fasteners ua tau raws li qhov xav tau ntawm lub neej qaug zog (qhov nruab nrab qaug zog lub neej tsis tsawg dua 65000 zaug, thiab ib leeg qaug zog lub neej tsis tsawg dua 45000 zaug); Kev kuaj ncua kev puas tsuaj (raws li GJB 715.12-1990, qhov kev ntxhov siab tas li yog khaws cia rau 96 teev nyob rau hauv huab cua puag ncig) Cov txiaj ntsig tau pom tias tsis muaj kev puas tsuaj ntawm lub ntsia liaj qhov rooj hauv lub sijhawm kuaj, thiab tsis muaj qhov tawg ntawm qhov chaw. bolt nto thiab xov tom qab unloading. Cov khoom zoo ntawm cov tshiab tsim ultra-siab zog bolt ua tau raws li qhov yuav tsum tau ua.
Nws tau tshaj tawm tias txawv teb chaws ultra-siab zog fasteners tau tsim cov qauv tsim tshwj xeeb (xws li VDA 235-2005) Hauv qhov sib piv, cov thev naus laus zis thiab cov qauv ntawm Tuam Tshoj' cov khoom lag luam cuam tshuam tau poob qis, yog li nws yog qhov ceev heev. los tsim cov kev qhia tshwj xeeb. Qhov project tau ua tiav cov qib 16.8 thiab 19.8 fasteners, uas yog ib qho kev sib tw hauv kev nce siab ntawm lub zog ntawm fasteners thiab cov ntaub ntawv hauv ntiaj teb. Nws yuav zoo txhawb lub khaub-ncaws nyias raug ntawm Tuam Tshoj' s loj cov khoom (xws li paub hais tias lub hom phiaj ntawm miniaturization ntawm engine thiab kev txhim kho hwj chim ceev) Qhov no txhob nyob rau hauv txoj kev loj hlob ntawm ultra-siab zog bolts ntawd hais tias tus txheej txheem ntawm Tuam Tshoj' qhov tseem ceeb ntawm cov khoom siv thiab cov khoom siv los ntawm kev ua raws li kev coj ua nrawm nrawm.
