Qhov teeb meem ntawm kev tu lub siab lub zog fasteners feem ntau tshwm sim tom qab kev kho cua sov thiab tempering, thiab qhov teeb meem tseem ceeb yog tias cov dej yaug tsis huv. Raws li qhov tshwm sim ntawm tsis tsim nyog stacking ntawm fasteners, lye tseem nyob rau saum npoo, tsim nto xeb thiab alkali hlawv, los yog xaiv tsis raug ntawm quenching roj ua rau lub fastener nto xeb.
1. Kev ua qias tuaj thaum lub sij hawm yaug
Tom qab quenching, cov fasteners tau ntxuav nrog silicate tu tus neeg saib xyuas thiab ces yaug. Cov khoom siv tau tshwm sim ntawm qhov chaw. Cov khoom tau soj ntsuam los ntawm infrared spectrometer thiab paub tseeb tias yog inorganic silicate thiab hlau oxide. Qhov no yog vim qhov seem ntawm silicate ntawm qhov chaw fastener tom qab yaug tsis tiav.
2. Lub stacking ntawm fasteners tsis tsim nyog
Tom qab tempering fasteners pom cov tsos mob ntawm discoloration, tsau nrog ether, cia ether volatilize thiab nrhiav cov seem oily residue, cov tshuaj no yog cov ntsiab lus siab ntawm lipids. Nws qhia tau hais tias cov fasteners muaj kab mob los ntawm cov tshuaj ntxuav thiab quenching roj thaum lub sij hawm yaug lub sij hawm, uas yaj thaum tshav kub kub kev kho mob kub thiab tawm chemical burning caws pliav. Cov khoom zoo li no ua pov thawj tias qhov chaw fastener tsis huv. Kev soj ntsuam nrog infrared spectrometer, nws yog ib qho sib xyaw ntawm cov roj hauv paus thiab ether hauv quenching roj. Cov ether tuaj yeem los ntawm kev sib ntxiv ntawm cov roj quenching. Cov txiaj ntsig kev soj ntsuam ntawm cov roj quenching nyob rau hauv lub mesh siv rauv kom paub meej tias cov fasteners muaj me ntsis oxidation nyob rau hauv lub quenching roj vim tsis tsim nyog stacking thaum lub sij hawm cua sov, tab sis nws yuav luag negligible. Qhov tshwm sim no muaj feem xyuam rau cov txheej txheem ntxuav, tsis yog cov teeb meem roj quenching.
3. Deg residue
Cov seem dawb ntawm cov ntsia hlau siab zog tau txheeb xyuas los ntawm infrared spectrometer thiab paub tseeb tias yog phosphide. Tsis muaj cov tshuaj ntxuav cov kua qaub los ntxuav lub tank, thiab kev tshuaj xyuas ntawm lub tank yaug pom tias lub tank muaj cov pa roj carbon ntau. Lub tank yuav tsum tau nteg tsis tu ncua, thiab cov concentration ntawm lye nyob rau hauv lub tank yuav tsum tau xyuas ntau zaus.
4. Alkali hlawv
Lub zog muaj zog ntsia hlau quenching residual tshav kub blackening muaj ib qho zoo, du roj dub sab nrauv. Tab sis nyob rau hauv lub nplhaib sab nrauv muaj ib tug txiv kab ntxwv pom cheeb tsam. Tsis tas li ntawd, muaj cov cheeb tsam ntawm lub teeb xiav lossis lub teeb liab.
Nws tau raug kuaj pom tias qhov chaw liab ntawm cov ntsia hlau yog tshwm sim los ntawm alkali hlawv. Alkaline ntxuav tus neeg sawv cev uas muaj chlorides thiab calcium compounds yuav hlawv cov hlau fasteners thaum kho cua sov, tawm hauv cov pob txha ntawm cov fasteners.
Qhov saum npoo alkalinity ntawm steel fasteners tsis tuaj yeem raug tshem tawm hauv cov roj quenching, kom qhov chaw kub hnyiab kub austenite thiab aggravates qhov raug mob nyob rau hauv cov kauj ruam tom ntej ntawm tempering. Nws raug nquahu kom ntxuav thiab yaug cov fasteners kom huv si ua ntej kev kho cua sov kom tshem tawm cov alkaline residues uas ua rau kub hnyiab rau fasteners.
5. Kev ywg dej tsis raug
Rau qhov loj loj fasteners, polymer aqueous tov quenching feem ntau yog siv. Ua ntej quenching, alkaline ntxuav tus neeg sawv cev yog siv los ntxuav thiab yaug cov fasteners. Tom qab quenching, cov fasteners tau xeb nyob rau hauv. Kev tshuaj xyuas nrog infrared spectrometers tau lees paub tias ntxiv rau cov hlau oxide, muaj sodium, potassium thiab sulfur, qhia tias lub fastener yog daig rau sab hauv ntawm alkaline ntxuav tus neeg saib xyuas, tej zaum cov poov tshuaj hydroxide, sodium carbonate lossis cov khoom zoo sib xws, txhawb kev xeb. Fastener rinsing yog kuaj xyuas kom muaj kab mob ntau dhau thiab nquag hloov cov dej yaug kuj pom zoo. Tsis tas li ntawd, ntxiv xeb inhibitor rau cov dej kuj yog ib txoj hauv kev zoo.
Post lub sij hawm: Dec-30-2022