Qhov sib txawv ntawm Overlay Vuam thiab Hard Facing

Overlay welding thiab tawv ntsej muag yog ob qho kev siv ntau hauv kev lag luam rau kev txhim kho cov kav ntev thiab hnav tsis kam ntawm cov khoom raug rau kev ua haujlwm hnyav. Thaum ob qho tib si txheej txheem txhawm rau txhim kho cov khoom nto ntawm cov khoom siv, muaj qhov sib txawv ntawm lawv daim ntawv thov, cov ntaub ntawv siv, thiab cov txiaj ntsig tau. Nyob rau hauv tsab xov xwm no, peb yuav tshawb txog qhov sib txawv ntawm qhov sib tshooj ntawm qhov sib tshooj thiab qhov nyuaj ntawm cov txheej txheem, cov khoom siv, thiab lawv qhov zoo thiab cov kev txwv.

Dab tsi yog Overlay Vuam

Overlay welding, tseem hu ua cladding lossis surfacing, suav nrog tso ib txheej ntawm cov khoom siv sib xws rau saum npoo ntawm lub hauv paus hlau. Qhov no ua tiav los ntawm cov txheej txheem xws li submerged arc vuam (SAW), roj hlau arc vuam (GMAW), lossis ntshav hloov pauv arc vuam (PTAW). Cov khoom siv overlay yog xaiv raws li nws cov kev sib raug zoo nrog lub hauv paus hlau thiab cov khoom uas xav tau.

Cov khoom siv nyob rau hauv Overlay Vuam:

1. Weld Overlay: Nyob rau hauv cov txheej txheem no, cov khoom siv overlay feem ntau yog cov khoom siv vuam hlau, uas tuaj yeem yog cov hlau tsis tshua muaj carbon steel, stainless hlau, lossis npib tsib xee-raws li alloy. Cov khoom siv weld overlay yog xaiv raws li nws cov kev tiv thaiv corrosion, hnav tsis kam, lossis cov khoom kub kub.

Qhov zoo ntawm Overlay Vuam:

1. Versatility: Overlay welding tso cai rau ntau yam khoom siv rau kev hloov kho saum npoo, muab kev yooj yim hauv kev txiav cov khoom sib tshooj raws li cov kev xav tau tshwj xeeb.

2. Nqi-zoo: Overlay welding muab cov nqi tsim nyog rau kev txhim kho cov khoom saum npoo ntawm cov khoom, vim tsuas yog ib txheej nyias nyias ntawm cov khoom kim heev yog siv rau hauv cov hlau hauv paus.

3. Kev Kho Kev Muaj Peev Xwm: Overlay welding kuj tseem siv tau los kho qhov chaw puas lossis puas ntsoog, ncua kev pab cuam lub neej ntawm cov khoom.

Kev txwv ntawm Overlay Vuam:

1. Bond Strength: Lub zog ntawm daim ntawv cog lus ntawm cov khoom overlay thiab lub hauv paus hlau tuaj yeem ua rau muaj kev txhawj xeeb, vim tias kev sib txuas tsis txaus yuav ua rau delamination lossis ua tsis tiav ntxov.

2. Txwv Thickness: Overlay welding feem ntau txwv rau ob peb millimeters ntawm thickness, ua rau nws tsis haum rau daim ntaub ntawv uas yuav tsum tau thicker txheej ntawm enhanced nto.

3. Heat-Affected Zone (HAZ): Cov khoom siv hluav taws xob thaum lub sij hawm overlay welding tuaj yeem ua rau muaj qhov cuam tshuam ntawm tshav kub, uas tuaj yeem pom cov khoom sib txawv ntawm cov khoom siv overlay thiab hauv paus.

Hard Facing yog dab tsi

Lub ntsej muag tawv, tseem hu ua nyuaj surfacing lossis txhim kho vuam, suav nrog kev siv cov txheej txheem hnav-tiv taus rau saum npoo ntawm cov khoom siv los txhim kho nws cov kev tiv thaiv rau kev puas tsuaj, yaig, thiab cuam tshuam. Cov txheej txheem no feem ntau yog siv thaum qhov kev txhawj xeeb tseem ceeb yog hnav tsis kam.

Cov khoom siv hauv Hard Facing:

1. Hard-Facing Alloys: Cov ntaub ntawv nyuaj yog cov alloys feem ntau muaj cov hlau hauv paus (xws li hlau) thiab cov hlau alloying xws li chromium, molybdenum, tungsten, lossis vanadium. Cov alloys no raug xaiv rau lawv qhov tshwj xeeb hardness thiab hnav tsis kam.

Qhov zoo ntawm Hard Facing:

1. Superior Hardness: Cov khoom siv tawv tawv raug xaiv rau lawv qhov tshwj xeeb hardness, uas tso cai rau cov khoom siv tiv thaiv kev hnav, kev cuam tshuam, thiab kev siv zog siab.

2. Wear Resistance: Lub ntsej muag tawv zoo txhim kho qhov hnav tsis kam, ua rau lub neej kev pab cuam ntawm cov khoom siv hauv kev ua haujlwm hnyav.

3. Thickness Options: Lub ntsej muag tawv tuaj yeem siv rau hauv cov khaubncaws sab nraud povtseg ntawm cov thickness sib txawv, tso cai rau kev tswj xyuas meej ntawm cov khoom hnav-resistant ntxiv.

Kev txwv ntawm Hard Facing:

1. Txwv tsis pub muaj ntau yam: Cov ntaub ntawv nyuaj yog feem ntau tsom rau kev hnav tsis kam thiab yuav tsis muaj qhov xav tau kev tiv thaiv corrosion, cov khoom kub kub, lossis lwm yam tshwj xeeb uas yuav tsum tau ua hauv qee yam kev siv.

2. Tus nqi: Hard-facing alloys zoo li yuav kim dua piv rau cov khoom siv welding overlay, uas yuav ua rau tus nqi ntawm qhov kev hloov kho saum npoo.

3. Kho nyuaj: Thaum siv cov txheej txheem nyuaj, nws tuaj yeem nyuaj rau kev kho lossis hloov kho qhov chaw, vim tias qhov nyuaj ntawm cov khoom ua rau nws tsis tshua muaj vuam.

Xaus:

Overlay welding thiab tawv ntsej muag yog cov txheej txheem kev hloov kho saum npoo uas siv los txhim kho qhov hnav tsis kam thiab ua haujlwm ntev ntawm cov khoom. Overlay welding muab versatility thiab nqi-zoo, cia rau ntau yam kev xaiv nyob rau hauv cov ntaub ntawv overlay. Nws yog tsim rau cov ntawv thov uas xav tau kev tiv thaiv corrosion, hnav tsis kam, lossis txhim kho cov khoom kub kub. Nyob rau hauv sib piv, nyuaj-facing tsom feem ntau ntawm hnav tsis kam, siv alloys nrog exceptional hardness. Nws yog qhov zoo tagnrho rau cov ntawv thov raug puas tsuaj loj, yaig, thiab cuam tshuam. Kev nkag siab txog cov kev cai tshwj xeeb ntawm daim ntawv thov thiab cov khoom uas xav tau yog qhov tseem ceeb hauv kev xaiv cov txheej txheem tsim nyog rau kev ua tiav cov txiaj ntsig xav tau.