1. Cov yam ntxwv cov yam ntxwv thiab kev teeb tsa qauv
ASTM A 519 51} b60 yog lub siab- pev roj av, thiab concorms rau lub ASTM A519 - 2025 txheem. Nws cov tub ntxhais muaj composition yog 0.60% carbon, 0.75- 1.00% chromium, thiab cov nqi chromium, thiab cov nyiaj chromium, thiab cov nyiaj chromium. Nws yog ultra - siab-zog lub caij nplooj ntoo hlav. Los ntawm cov roj quenching thiab moderate tempering, nws ua tiav lub tensile lub zog ntawm ntau dua los yog sib npaug nrog kev sib luag nrog ntau dua lossis sib npaug rau 8%. Cov ntaub ntawv no yog paub rau nws cov kev txwv ywj ywj pheej (σe ntau dua lossis sib npaug ntawm 1200 mpa) thiab kev ntxhov siab restionistance, ua rau kev sib zog rau huab cclic thauj khoom ib puag ncig.
2. Kev ua tau zoo sib txawv ntawm 51b50 / 51b70
51B60 muaj kev ua tau zoo nyob hauv A519 Caij Nplooj Ntoos Hlav Tsev Neeg:
Piv rau 51b50 (0.50% c), nws muaj ib qho siab dua elastic khaws khoom muaj peev xwm (Elastic Modulus muaj zog tshaj 51B70 (0.70% c);
Qhov sib ntxiv ntawm vanadium ho ua kom muaj ntau cov qoob loo loj (ttm tsis muaj . 8 lossis ntau dua li ntawm 500 mpa ntawm 10⁷ Cycles);
Cov xwm txheej raug xaiv: 51B60 yog qhov zoo tshaj plaws rau high- ntxhov siab nplooj hlav, thaum 511b70 yog pom zoo rau ultra- hnyav coil springs.
3. Cov ntawv thov tseem ceeb
Kev Thauj Mus Los: Hnyav {{{} Destion Tsheb Ntau {}}}} Snaking Shockber Springs;
Cov Khoom Siv Hluav Taws Xob: Sib sib zog nqus - roj twj tso kua mis valve springs, cua lub zog bearing rings;
Cov Ntawv Thov Tub Rog: Cov Cab Tshuaj Hluav Taws Xob Lub Cev, Carrier {{{0} Thaum dav hlau tsaws nuv;
Precision machinery: high-}}}}}}}}} Tool Spindle Disc Caij Nplooj Ntoos Hlav Los Sib Tham.
4. Cov thev naus laus zis tseem ceeb rau kev kho cua sov thiab saum npoo tawv tawv
Austempering: Tom qab Austenitizing ntawm 870 degree, hloov mus rau ib qho 280 Degree Salt Da dej rau ib teev los ua kom tiav cov qauv Bainite qis (HRC 50-52);
Tua cov clenenen: siv 0.3mm pov cov steel txhaj tshuaj nrog cov kev pab them rau ntau tshaj 200%, ua tiav ib qho kev ntxhov siab saum npoo av ntawm -800 mpa;
Corrosion tiv thaiv: Phosphating + CathoDic Electrophoresis (zaj duab xis tuab ntau dua los yog sib npaug ntawm 20 μm) los yog ntshav txau ntawm WC-10CO4CR txheej.
5. Kev ua haujlwm tshwj xeeb thiab kev tswj hwm zoo
Kev sib sau kub: Thaum kawg kev zam qhov ntsuas kub yuav tsum muaj ntau dua lossis sib npaug nrog 850 qib kom tsis txhob banding, thiab txuas ntxiv yog qhov yuav tsum tau ua.
Kev tsim cov nplaim hluav taws xob: tsuas yog cov nplaim hluav taws xob hauv zos rau hauv qab 300℃rau nplua- kev sib tw yog tso cai; Txwv tsis pub poob siab.
Cov Qauv Kuaj:
100% EDDY Kev Ntsuas Tam Sim No (En 10246-3 Chav Kawm B);
Qeeb Qeeb Dabtsi yog khoov rog rog (ISO 1143: 2025);
Hydrogen cov ntsiab lus tsawg dua lossis sib npaug rau 0.8 PPM (ASTM E1447 thermal conductivity txoj kev).
