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Lub xeev Hwj Naj Shaanxi, Suav teb

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Tsom xam txog kev kawm ntawv ntawm cov khoom 304 Series


304 stainless hlau uas nyob hauv cov khoom siv hlau stainless phaj, hlau stainless yeeb, stainless hlau li., stainless hlau bar/qws, thiab lwm cov hlau stainless fittings. Ntawm no peb tsom xam ntawv uas cov hlau stainless 304 khoom raws li nram qab no:


304 hlau stainless muaj intergranular corrosion kev kawm ua hauj, kuj zoo corrosion, txias ua hauj lwm, thiab stamping cov kev kawm uas yuav siv thaum tshav kub kub ua hauj stainless hlau. Tib lub sijhawm, steel no - 180℃under cov mob ntawm cov khoom txhua yam tseem zoo. Nyob rau hauv ib lub xeev uas tov tau plasticity thiab toughness cov hlau, ua hauj lwm no muaj peev xwm yog zoo; Nyob rau hauv oxidizing acid thiab atmospheric corrosion kuj, dej thiab lwm yam nruab nrab. Vim li ntawd, 304 yeeb stainless hlau ntau lawm thiab noj yog cov biggest, tshaj nyob nrog daim ntawv thov tau rau qib steel.


304 hlau stainless tau zoo txias thiab kub ua hauj lwm kev kawm, yuav siv hom txias thiab kub ua hauj lwm txoj kev, kev forging ntaub ntawv, stainless hlau qws, stainless ntxaij hlau, ntawv stainless hlau, stainless hlau sawb, hlau thiab lwm yam tshuaj metallurgical, kub ua hauj lwm ntau yam kub txog 900-1180 ℃. no ua hauj lwm yuav yooj yim dua, tshwj xeeb tsis muaj teeb meem, tiam sis vim muaj ob hom hlau yooj yim kom cov qhov hauv koj txias , thaum no deformation loj heev, yuav tsum muaj li ntawm annealing yuav kho, ntxiv mus xyuas.


1. kev kho mob kub txheej txheem


304 hlau stainless yeeb nkab uas tau muab kho kub txog ℃ 1080-1100 tau, cua txias dej los sis tej huab cua txias. Mob khaub thuas intermediate annealing kub tshaj hauv 850 uas-970 ℃, kom sov dej preservation tom qab lub sij hawm. Tom qab tau tshuaj kho haum rau austenitic tus hlau, tej zaum kuj muaj tseem them ntawm ferrite.


2. Weld


304 raj hlau stainless tswj yus tus kheej cov nag lossis daus carbide thaum vuam, vuam siv tau cov generic txoj kev. Kev tuav electric arc vuam, cov 0.04% - 0.04% ntawm nyias seem me me ntawm stainless 304 hlau yuav saws 002 electrode, tsis ua corrosion inter-crystalline ntsuam tom qab vuam, sab tuab lus, kom txhob muaj cov inter-ntau corrosion ua hauj tom qab vuam, tas cov kev kho cua sov tom qab vuam thiab yog tias tsis kho thaum tshav kub kub, yuav raug hloov los ua austenitic stainless hlau 304 L stainless hlau los yog nkuaj.


3. txias thawj kev kawm


304 stainless hlau nyias phaj hauv daim ntawv thov txheej txheem, siv nyob rau hauv txoj kev ua lag luam no. Txoj kev kawm no yog puab du thiab yield qhov ntsuas ntawm indicators as kev tseem ceeb. Tus mob khaub thuas thawj yam influencing 304 stainless hlau ntau, zoo heev. Saib raws nws cov metallography tau mas yog ib tug ntog steel Kex, namely tus piv ntawm Chromium thiab npib tsib xee tshaj rau cov pa tensile khoom ntawm Performance index elongation yog ib qho tseem ceeb characterization. Thiaj li yuav tau txoj kev kawm ntawv, ces yuav tsum muab tej tshuaj no rau hauv qhov piv steel ntawm Chromium thiab npib tsib xee leb nyob rau hauv ib qho kev khwv.


4. tshiab


Khoom siv rau cov khoom noj, nws kuj yog lug siv feem ntau siv tshuaj lom neeg, qhov chaw muaj cov cuab yeej siv zog atomic, etc. Tsis tsim yam sib sib zog nqus drawing thiab kua qaub pipeline, thawv, thiab lwm yam. Tsheb, nws pib qhov hauv thawv, khoom vaj khoom tsev uas siv cov khoom siv no. Yog tus austenitic stainless hlau ntau lawm thiab noj nqos tau cov hlau, feem siv zus tau tej cov nyias-walled, pipeline kua qaub thiab tog, thiab lwm yam. Feem ntau kuj siv Chromium thiab npib tsib xee stainless hlau thiab stainless hlau vuam hoob khoom, tsis sib nqus Cheebtsam thiab siv Cheebtsam kub uas tsis muaj chaw.