Kev siv cov fasteners yuav tsum tau them sai sai rau cov ntsiab lus, kev ua tau zoo yog qhov tseem ceeb heev, kev saib xyuas tsis tu ncua yog qhov tseem ceeb, kom ntseeg tau tias lub tshuab ua haujlwm ib txwm muaj. Txhawm rau tiv thaiv qee qhov teeb meem nrog cov fasteners, peb yuav tsum tau xyuam xim rau cov ntsiab lus tseem ceeb hauv qab no thaum ua kev tu txhua hnub ntawm fasteners.
1.Cov pa phem los ntawm kev yaug.
Fasteners yuav tsum tau ntxuav nrog silicate detergent tom qab quenching, thiab ces yaug, yog li ntawd lawv yuav tsum tau muab ntxuav kom zoo zoo kom tsis txhob muaj residues.
2.Lub fastener stacking yog tsis tsim nyog.
Tom qab tempering, lub fastener yuav pom cov tsos mob ntawm discoloration, thiab tej zaum yuav muaj oily residues tom qab soaking nyob rau hauv lub ether, qhia tias qhov chaw ntawm fastener tsis huv. Tom qab kev soj ntsuam, cov fasteners tsis stacked zoo thaum cua sov, ua rau me ntsis oxidation ntawm fasteners nyob rau hauv cov roj quenching.
3.Ntog residues.
Muaj cov seem dawb ntawm cov ntsia hlau muaj zog, uas tau txheeb xyuas los ntawm cov cuab yeej thiab paub tseeb tias yog phosphate. Cov tshuaj tiv thaiv no tshwm sim vim tias cov kua qaub ntxhua tsis tau ntxuav thiab lub tank yaug tsis tau kuaj xyuas kom zoo.
4.Alkali hlawv.
Lub zog muaj zog ntsia hlau quenching khib nyiab kub dub muaj ib qho kev sib xws, tiaj tus roj dub sab nrauv. Nws yog tshwm sim los ntawm alkali hlawv. Yog li ntawd, cov hlau fasteners tsis tuaj yeem tshem tawm cov alkaline saum npoo ntawm cov roj quenching, uas ua rau cov nplaim hluav taws kub hnyiab, thiab ua rau muaj kev puas tsuaj thaum lub sij hawm tempering. Nws raug nquahu kom ntxuav thiab yaug cov fasteners ua ntej kev kho cua sov, kom tshem tawm cov alkaline residue uas ua rau kub hnyiab rau cov fasteners.
5. Kev yaug tsis raug.
Rau cov lus qhia loj, cov fasteners feem ntau yog siv los ntawm quenching nrog polymer aqueous tov, thiab lawv raug ntxuav thiab yaug nrog lub tshuab ntxuav alkaline ua ntej quenching, thiab cov fasteners tau xeb nyob rau sab hauv tom qab quenching. Yog li feem ntau pauv cov dej yaug, kom ntseeg tau tias cov fasteners yuav tsis xeb.
6. Ntau dhau xeb.
High-strength fasteners feem ntau pom ib co kab txaij dub, cov kab txaij dub no rau cov khoom seem seem, rau cov roj ci qhuav quenching, yog cov evolution ntawm cov roj theem hauv cov txheej txheem quenching. Vim nws yog quenching roj ntau dhau lawm, nws raug nquahu kom ntxiv cov roj tshiab.
Post lub sij hawm: Aug-19-2022