Thaum ua haujlwm nrog hlau, tib neeg feem ntau xav tias yuav ua li cas rau cov hlau tsis huv. Muaj ntau txoj hauv kev. Hlau hardening yog ib qho kev ua haujlwm hnyav. Nws yog ib qho tsim nyog kom cov khoom muaj zog.
Tam sim no, kev lag luam hardening ntawm hlau yog siv. Nws yog tsim nyob rau hauv tshwj xeeb thermal qhov cub. Ntau tus xav paub yuav ua li cas ua kom tawv stainless hlau hauv tsev. Qhov no yog qhov nyuaj ua yam tsis muaj cov cuab yeej tshwj xeeb. Hauv tsev, koj tuaj yeem ua rau cov hlau tsis muaj zog thiab tshem tawm cov softness. Hauv tsab xov xwm hnub no, peb yuav saib yuav ua li cas thiaj ua tiav qhov no.
Vim li cas thiaj xav tau?
Ua ntej tempering stainless hlau, nws yog ib qho tsim nyog yuav tsum nkag siab tias vim li cas qhov txheej txheem no tsim nyog. Yog hais tias cov hlau yog zoo hardened, nws yuav tsis khoov tau yooj yim. Tom qab kev kho cua sov, cov khoom yuav tsis tawg.
Tsis tseem ceeboverdo nws nrog hardening, txwv tsis pub cov hlau yuav nkig heev. Hauv qhov no, koj yuav tau tso cov khoom. Ntau tus tsis paub yuav ua li cas rau ib rab riam tawv kom cov hniav muaj zog thiab tsis khoov thaum txiav. Hom haujlwm no tuaj yeem ua tiav tom tsev yog tias koj ua raws li cov cai tswj kev nyab xeeb. Nws yuav tsum nco ntsoov tias steel yuav tsum tsis txhob overheated. Yog nws nyuaj dhau, rab riam yuav tsis txiav zoo.
Muaj ob txoj kev xaiv: tawv tag nrho cov khoom, lossis tsuas yog ib feem ntawm nws. Thawj qhov kev xaiv yog hu ua lub ntiaj teb hardening ntawm cov hlau, thiab qhov thib ob - hauv zos.
kev ua haujlwm dav dav
Txhim kho lub riam stainless hlau kom zoo, koj xav tau:
- Kub lub hlau ntawm cov khoom. Tus kov tsis tas yuav ua kom sov.
- Tos kom txog thaum rab riam tig liab qab. Cov hlau yuav tsum sov kom sib npaug.
- Nws yog qhov yuav tsum tau ua kom sov cov hniav tsis pub dhau 10 feeb, tom qab ntawd muab tso rau hauv cov ntaub qhwv thiab tshem tawm tam sim ntawd.
Tom qab ua haujlwm, koj yuav tsum tshem tawm cov seem ntawm sealing ciab los ntawm cov hniav. Tom ntej no, so saum npoo nrog turpentine.
Koj xav tau dab tsi los ua haujlwm nrog stainless hlau?
Yuav tsum tau npaj cov khoom tsim nyog ua ntej thiab saib xyuas cov cuab yeej zoo. Yog tias lub tsev tsis muaj lub qhov cub hluav taws xob, ces lub tshuab hluav taws xob siv tau zoo rau kev ua haujlwm. Koj yuav tsum tau yuav cov khoom siv sealing, nrog rau turpentine.
hlau hloov li cas thaum ua haujlwm?
Ntau tus neeg ua rab riam hauv tsev. Txoj haujlwm no yuav tsum muaj kev txawj ntse. Ua ntej koj harden ib rab riam hauv tsev, koj yuav tsum paub seb cov txheej txheem mus li cas thiabYuav ua li cas rau cov hlau.
Thaum ua haujlwm, cov hlau yog cua sov. Nyob ntawm cov khoom siv los ntawm cov ntawv ua, nws tau txais cov xim liab lossis dawb. Thaum lub sij hawm hardening txheej txheem, cov hlau yuav muaj zog tshaj nws yog ua ntej cov txheej txheem. Durability nce nyob rau hauv cov ntaub ntawv hauv qab no:
- Thaum cov hlau ua kom sov mus txog qhov taw tes. Cov txheej txheem ntawm kev puas tsuaj ntawm cov qauv siv lead ua pib.
- Hlau hloov mus rau hauv qhov muag muag. Crystals ua mobile. Lawv ua zoo grained. Tom qab cov khoom txias, cov nplej tsis poob lawv cov qauv. Muaj kev sib raug zoo ntawm lawv. Yog li ntawd, cov hlau yuav muaj zog, tab sis tib lub sij hawm nkig.
Ntau tus neeg txaus siab yuav ua li cas kom tawv nqaij. Cov kws tshaj lij qhia ua haujlwm tsuas yog nrog kev txiav ntug. Hauv qhov no, cov khoom yuav kav ntev.
Txoj kev ntsuas hlau rau qhov tawv tawv
Ntau tus neeg siv riam stainless hlau hauv lub neej txhua hnub. Yog tias lawv tsis paub tias nws xav tau kev kho cua sov los ua kom hnav tsis kam, saib cov qib hardness ntawm cov hlau.
Qhov no yog dab tsi? Lub hardness ntawm ib tug hlau feem ntau yog to taub raws li nws tsis kam mus loads los ntawm cov khoom muaj zog. Muaj cov txheej txheem Rockwell tshwj xeeb. Nws muaj nyob rau hauv nias lub pob hlau. Cov indenters siv yog cov khoom pob thiab pob zeb diamond cones nrog 120 ° apex lub kaum sab xis thiab ib puag ncig ntse kawg.
Vim nws txoj kev yooj yim, txoj kev no yog ib qhontawm cov txheej txheem kuaj cov khoom siv ntau tshaj plaws.
Yuav ua li cas txiav txim siab qib ntawm cov hlau hardness yam tsis muaj cov cuab yeej tshwj xeeb?
Hauv tsev, koj tuaj yeem txiav txim siab qhov hardness ntawm cov khoom yam tsis muaj lub cuab yeej. Txhawm rau ua qhov no, khaws cov ntaub ntawv. Nws tuaj yeem siv los txiav txim siab qhov nyuaj ntawm qhov chaw tiaj tus. Txoj kev no kuj ua haujlwm nrog cov npoo sib npaug. Yog tias ntug ntawm cov khoom yog ntse heev, ib daim iav raug coj mus kuaj lub zog.
Yog cov hlau mos, nws yuav tsis txiav iav (qhov siab tshaj plaws yuav tawm ob peb khawb). Thaum cov hlau yog tawv, nws yog ib qho nyuaj rau coj nws nrog ib rab koob ntaub ntawv. Tom qab qee qhov kev siv zog, nws yuav ua rau pom qhov cim ntawm lub khob.
Yog tias cov hlau raug rau qhov muaj zog hardening, ces nws yuav luag tsis tuaj yeem nqa nrog rab koob ntaub ntawv. Cov khoom tau yooj yim txiav iav. Hauv cov txheej txheem, koj tuaj yeem hnov ib qho tshwj xeeb crunch.
Yuav ua li cas yog lub tsev hardening?
Ua ntej koj ua cov hlau tsis muaj steel, koj yuav tsum paub seb cov txheej txheem twg muaj rau kev ua haujlwm hauv tsev. Ntau yam nyob ntawm txoj haujlwm raug. Nws yog ib qho tseem ceeb uas yuav tau xav txog qib ntawm cov hlau tsis muaj steel hlau. Muaj ntau hom hlau hardening:
- Hardening nyob rau hauv ib puag ncig. Nws suav hais tias yog ib txoj hauv kev yooj yim tshaj plaws. Nws yuav tsum nco ntsoov tias txoj kev tsis haum rau cov hlau, uas muaj cov pa roj carbon ntau. Yog tias koj nqa ib daim ntawv ntawm hom no, tom qab ntawd raws li qhov tshwm sim ntawm hardening, tawg yuav tshwm rau nws. Cov khoom ua nkig thiab feem ntau poob nws cov duab. Cov txheej txheem yog zoo heev rau cov khoom uas tsis muaj feem puacarbon.
- Nquag hardening method. Nws tshwm sim hauv ob theem. Cov khoom yog txias hauv dej, tom qab uas nws tau muab tso rau hauv cov roj. Koj tuaj yeem tso cov hlau rau saum huab cua. Txoj kev no yog tsim rau cov hlau uas muaj cov ntsiab lus carbon siab. Nws tso cai rau cov hlau yuav hardened yam tsis muaj cracking. Txoj kev suav hais tias nyuaj rau kev ua hauv tsev. Nws yuav tsum tau siv rau cov khoom uas muaj cov ntsiab lus carbon siab.
- Txhawm rau ua kom cov hlau tsis muaj zog ib kauj ruam, koj yuav tsum xub ua kom sov cov hlau, thiab tom qab ntawd txo qis rau hauv dej kub nrog ntxiv ntsev. Cov khoom yog khaws cia rau hauv ib da dej ntsev txog li 5 feeb. Muaj qhov txias txias. Cov khoom yuav tsis cuam tshuam los ntawm thermal stress. Qhov zoo ntawm txoj kev no yog tias nws tsis txhob tawg thiab lwm yam kev puas tsuaj rau cov hlau. Cov kauj ruam kawg yog kom txias cov ntawv hauv cov huab cua ntshiab. Txoj kev no yog tsim los rau cov hlau nyias, uas muaj cov pa roj carbon ntau.
- Nto hardening ntawm hlau. Nws feem ntau hu ua ib nrab. Muaj coob tus neeg xav paub seb yuav ua li cas rau harden stainless hlau raws li txoj kev no. Hauv qhov no, nws tuaj yeem pom tias cov khoom tau txais lub zog saum npoo. Lub hauv paus ntawm cov hlau tseem ductile. Txoj kev yog zoo meej rau hardening qhov chaw uas tuaj yeem tiv taus hnyav.
- Tom qab kev tso tawm. Nws yog qhov nthuav nyob rau hauv uas koj tuaj yeem teeb lub hardness ntawm cov hlau mus rau qhov xav tau qhov tob. Txoj kev no yog siv thaum ua haujlwm ntawm cov cuab yeej percussion. Lub zog ntawm cov khoom no nce.
Dab tsi yog siv los txias stainless hlau hauv tsev?
Nyob hauv tsev, siv cov cua txias tom qab hardening cov hlau:
- Dej. Nws nrawm nrawm nrog kev ua haujlwm ntawm lub tshuab cua txias. Nws tsis pom zoo kom muab cov hlau uas muaj feem pua ntawm cov pa roj carbon ntau hauv dej. Cov khoom yuav deformed. Qhov nruab nrab no haum rau cov hlau tsis muaj carbon tsawg.
- Yog hais tias ib tug neeg xav kom tusyees txias cov khoom tom qab hardening, ces nws yuav tsum tau ntxhia roj. Nws tso cai rau cov hlau kom txias maj mam thiab tsis ua rau deformation. Txoj kev no zoo heev rau cov hlau alloy.
- Sodium chloride lossis hydroxide nthuav tawm hauv cov kua dej. Qhov concentration ntawm cov tshuaj yuav tsum tsis pub tshaj 10 feem pua. Cov khoom siv hlau yuav sib npaug. Txoj kev xav tau yog siv rau cov hlau nrog cov ntsiab lus siab carbon.
- Ntau yam kev daws teeb meem polymer. Cov no suav nrog cov tshuaj ntxuav tes. Cov txheej txheem yog qhov zoo vim nws tsis ua rau deformation ntawm cov khoom. Yuav tsis muaj qhov tsis xws luag ntawm cov khoom.
rooj hlau txias txias tom qab quenching
| Pom zoo ib puag ncig rau kev ua kom txias txias | ntsuas kub zoo |
| Yuav | 20 txog 80 degree |
| Butter | 20 txog 200 degrees |
| Saline daws | 20 degree thiab siab dua rau infinity |
Koj yuav tsum paub dab tsi los ua cov hlau tsis huv hauv tsev?
Ua ntej ua qhov haujlwm no hauv tsev, koj yuav tsum kawm qee cov cai:
- Yog tias cov hlau muaj zog ntxiv, ces nws yuav tsum tau rhaub kom ntau li ntau tau. Nws yog qhov zoo tshaj kom tos kom txog thaum cov khoom tig xim av.
- Yog tias muaj cov pa roj ntau ntau hauv cov hlau, ces koj yuav tsum tau ceev faj txog cov txheej txheem txias.
- Yog tias cov khoom xav tau hardening tag nrho saum npoo, ces nws yuav tsum tau muab sib npaug ntawm txhua sab.
- Tsis txhob cia cov hlau tsis muaj cua sov. Qhov saum npoo yuav tsum tsis txhob pom qhov chaw vim yog cua sov.
- Ua ntej pib ua haujlwm, koj yuav tsum npaj cov khoom tshwj xeeb. Koj yuav xav tau lub thawv txias rau cov hlau.
Cov Lus Qhia Tus Kheej
Cov kws tshaj lij qhia kev ua kom cov hlau tsis muaj zog tshaj qhov qhib hluav taws. Cov nplaim hluav taws yog qhov zoo tshaj plaws rau cov laj thawj no. Nws raug nquahu kom siv cov coals npaj txhij. Lawv khaws qhov kub uas xav tau ntev heev.
Yog tias cov khoom xav tau ib nrab hardening, ces yuav tsum tau siv lub tshuab blowtorch. Nws yog tsim rau kev ua hauj lwm nrog txiav ntug thiab lwm yam me me. Nws yog ib qho tseem ceeb kom tsis txhob overexpose qhov chaw ntawm hluav taws.
Cov pib pib feem ntau nug yuav ua li cas kom npau taws tsis zoo raws li cov lus qhia. Nws tseem ceeb heev kom paub tias yuav tsum tau ceev faj txog kev nyab xeeb dab tsi thaum ua haujlwm nrog nws. Yog tias lub sijhawm ua kom txias yog ua nrog roj, ua kom deb ntawm lub thawv kom tsis txhob kub hnyiab.
Yuav ua li cas txo qis hardness ntawm stainless hlau nrog tempering?
Hnub so yog siv los tshem tawm ntau ntxivhlau hardness. Cov khoom yog rhuab mus rau qhov kub siab tshaj plaws, thiab maj mam txias hauv huab cua.
Rau hnub so, koj tuaj yeem siv qhov kub tsis tshaj 250 degrees. Hauv qhov no, cov khoom siv tsis poob nws lub zog. Hauv hom no, lawv ua haujlwm nrog riam thiab lwm yam khoom tho.
Caij nplooj ntoos hlav thiab kauv raug pom zoo kom sov li 500 degrees. Yog tias ib tug neeg ua haujlwm ntawm qhov tsim los rau kev poob siab, ces nws tuaj yeem siv qhov ntsuas kub ntawm 500 txog 700 degrees.
Yuav ua li cas kom tawv stainless hlau? Cov lus qhia kev nyab xeeb
Txhawm rau kom ntseeg tau tias kev ua haujlwm nrog hlau tsis ua rau tib neeg noj qab haus huv, yuav tsum tau saib xyuas kev nyab xeeb hauv qab no:
- Koj yuav tsum tsis tu ncua tso cua tawm hauv chav uas cov txheej txheem hlau ua kom zoo. Nws raug nquahu kom nruab ib lub hood tshwj xeeb hauv chav. Yuav tsum tsis txhob pub menyuam yaus thiab tsiaj nkag mus rau hauv chav ua haujlwm.
- Hauv cov txheej txheem koj yuav tsum siv hnab looj tes tshwj xeeb. Thaum cov cuab yeej pib ci, lawv muab tso rau hauv dej kom txog thaum lawv txias tag.
- Thaum ua haujlwm nrog hluav taws, koj yuav tsum ua raws li cov cai ntawm kev tua hluav taws, tsis txhob mus ze qhov hluav taws kub nrog cov kua dej uas muaj hluav taws kub.
- Yog cov khoom tawv tawv hauv cov roj, ces lub thawv kaw kom nruj nrog lub hau.
- Koj yuav tsum tau ua haujlwm hauv cov khaub ncaws tiv thaiv tshwj xeeb. Lub tes tsho thiab ob txhais ceg yuav tsum tau npog vim muaj kev pheej hmoo ntawm caj dab.
Yog li, peb tau saib yuav ua li cas kom tawv stainless hlau. Raws li koj tuaj yeem pom, qhov haujlwm no tuaj yeem ua tiav nrog koj tus kheej tes hauv tsev.tej yam kev mob. Qhov tseem ceeb tshaj plaws yog tsis txhob hnov qab txog kev ceev faj txog kev nyab xeeb thiab ua raws li cov lus qhia raws nraim.
