Yuav ua li cas Jimeng daws cov teeb meem uas tshwm sim hauv kev ua cov springs kub-rolled rau cov tsheb engineering?
Kub-Rolled Springs yog dav siv nyob rau hauv lub kaw lus raug tshem tawm, kev poob siab, thiab kev xa cov kab ke ntawm cov tsheb uas tsim khoom. Lawv qhov kev ua tau zoo cuam tshuam rau cov khoom muaj peev xwm thiab kev ruaj khov ua haujlwm ntawm tag nrho cov tsheb. Txij li thaum kub yob cov txheej txheem cuam tshuam nrog kev ntsuas kub, thiab kev kho cua sov microstructural, cov teeb meem kev ua haujlwm txuas ntxiv, muaj teeb meem ntawm kev sib tw kub, feem ntau tau ntsib thaum ua tau. Kab lus no tau yoog raws kev lag luam kev tshawb fawb los tshuaj xyuas cov teeb meem ib txwm muaj thiab ua rau kev ua cov springs kub thiab tawm tswv yim sib haum.
1. Cov teeb meem khoom siv
1.1 Ua ntej nyob rau hauv cov khoom siv cov khoom muaj pes tsawg leeg
Kub-dov springs yog feem ntau ua los ntawm nruab nrab-carbon lossis alloy caij nplooj ntoos hlav steel (xws li 60si2mn, 50crva, thiab lwm yam). Yog tias cov tshuaj lom neeg tshuaj lom neeg ntawm cov hlau tsis ruaj khov, nws tuaj yeem ua rau hloov pauv hauv cov kws kho tshuab, muaj kev cuam tshuam kev ua kom qaug zog, thiab muaj peev xwm ua haujlwm yas.
Commifestations:
Lub hardness ntawm lub caij nplooj ntoos hlav tom qab quenching tsis raws li cov qauv txheej txheem;
Mos me ntsis lossis cov pob tawv tawv tshwm sim thaum lub sijhawm temperinging.
Kev daws teeb meem:
Screen nruj thiab xaiv cov neeg xa khoom tsim nyog;
Qhia cov qauv kev tsom xam rau cov khoom lag luam;
Kev ua cov cua sov ua ntej rau cov khoom tseem ceeb ntawm cov ntaub ntawv.
1.2 khoom tsis xws luag
Tsis xws luag xws li inclusions, chaw nruab looseness, thiab subcutaneous no yuav nthuav mus rau hauv cov kab nrib pleb thaum kub dov.
Cov Ntsuas Ntsuas:
Txhim kho cov ntaub ntawv zoo ntawm cov ntaub ntawv raw thiab ua ntej siv hluav taws xob hloov kho lossis cov khoom siv tau melted;
Siv kev ntsuas ultrasonic los txheeb xyuas thiab tshem tawm cov khoom siv uas tsis zoo.
2. Txheej Txheem Txheej Txheem
2.1 Cov cua sov tsis sib xws los yog overburning
Lub cua sov kub ua ntej kub dov feem ntau tswj ntawm 1050 degree thiab 1200 degree. Cov cua sov tsis sib xws tuaj yeem ua rau tsis muaj kev sib txawv microstriature thiab kev sib txawv ntawm kev tawm tsam, thaum overarse nplej thiab txo cov khoom siv ntau dua.
Nrhiav:
Inconenticent Caij nplooj Hlav Tawm Tsam Tawm Tsam;
Tawg thaum tsim;
Tsis muaj kev pab tawv thiab luv luv lub neej tom qab kev kho cua sov.
Countermeasures:
Siv cov kev soj ntsuam ntau lub zog kub los ua kom ntseeg tau cov cua sov;
Tswj kub kub ceev thiab tuav sijhawm;
Zam kev ntev ntev kom sov.
2.2 kab nrib pleb thaum lub sij hawm yob
Yog tias cov khoom tsis muaj tseeb yog tsis muaj tseeb thaum lub sijhawm dov, lossis yog hais tias lub rollers zoo ntawm cov neeg pluag, kev tawg ntawm lub springs tuaj yeem tshwm sim.
Kev daws teeb meem:
Ua kom zoo cov ntaub pua chaw hla, qhov muaj peev xwm deformation, thiab dov ceev;
Ua kev saib xyuas ib txwm ntawm chais kom paub tseeb tias qhov chaw du;
Siv cov txheej txheem tsim nyog lubrication thiab cov txheej txheem txias.
3. Cov teeb meem kev kho cua sov
3.1 Quenching tawg
Thaum lub sij hawm quenching, lub caij nplooj ntoos hlav sai sai los ntawm qhov kub-kub atustenitic lub xeev los ua martensite. Yog hais tias tus nqi cua txias tsis yog tswj tau kom zoo lossis yog lub caij nplooj ntoo hlav muaj cov nyom nyuaj uas ua rau muaj kev ntxhov siab, cov kab nrib pleb yuav ua tau.
Kev tiv thaiv kev ntsuas:
Tswj cov cua txias qhov kub thiab txias thiab hloov kho;
Ua kom zoo txoj kev quenching, xws li kev yuav ntau theem cua txias;
Qhia cov txheej txheem kev hloov pauv-theem hloov zuj zus los daws kev ntxhov siab.
3.2 tsis txaus lossis ntau dhau
Tsis yooj yim tempering tuaj yeem ua rau brittle tawg, thaum ntau qhov tempering yuav txo lub zog.
Cov lus qhia:
Siv cov cua sov sov nrog cov ntsuas kub siab;
Nquag calibring cov seev kub tswj qhov kub;
Tsim kev kub taub hau nkhaus ua kom ruaj khov rau load thiab loj yuav tsum tau ua.
4. Kev tsim cov teeb meem thiab duab
4.1 nyuaj rau kev tswj hwm springback
Tom qab kub dov, residual kev nyuaj siab thaum txias tuaj yeem ua rau muaj kev sib txawv hauv cov duab geometric.
Kev daws teeb meem:
Ua intermediate annealing lossis shaping;
Siv online siv online tsis siv neeg mus nrhiav kom tau thiab kho kom zoo;
Kev tswj hwm qhov ntsuas qhov kub thiab dov thiab dov tsim.
4.2 Cov oxidation thiab decarburization
Thaum lub sijhawm ua kom sov, oxide nplai thiab Decarburnization txheej yuav ua rau saum npoo, tsis zoo cuam tshuam rau kev ua phem.
Countermeasures:
Siv cua sov los yog ntsev-da dej;
Ua cov nplaim hluav taws los yog tev tom qab ua;
Xav txog kev kho kom muaj kev kho kom muaj kev kho kom muaj kev kho mob (xws li phosphaplating lossis txhaj tshuaj tu noob qes) thaum lub sijhawm tsim.
