CVG steel: muaj pes tsawg leeg, daim ntawv thov thiab cov yam ntxwv

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Kawm metallurgy thiab tag nrho nws cov subtleties, koj tsis yeem pib muaj kev xav tsis thoob kom tau txais cov ntaub ntawv muaj txiaj ntsig ntau npaum li qhov ua tau thiab siv sijhawm me ntsis thiab siv zog li sai tau. Nyob rau hauv cov ntaub ntawv no, kab lus no tshwm sim. Nws muaj tag nrho cov ntaub ntawv tseem ceeb tshaj plaws ntsig txog CVG steel: txiav txim siab lub cim, kawm txog kev muaj pes tsawg leeg, kev siv cov hlau no, nrog rau kev mus ncig luv luv rau hauv cov hlau hloov pauv thiab txawv teb chaws analogues. Txhua yam koj xav tau hauv ib qho chaw rau txhua tus neeg yooj yim.

HVG steel decoding

Tus nqi ntawm lub npe ntawm cov hlau yog qhov nyuaj rau overestimate, vim tias cov cim steel zais tsis yog nws qhov tshwj xeeb, tab sis kuj, yog tias koj paub txhais nws kom raug, qib steel tuaj yeem qhia ntau yam. hais txog cov khoom ntawm cov khoom. Ntawm qhov piv txwv ntawm CVG steel, qhov no yuav ntau dua qhov tseeb:

1. tsab ntawv "X" tseem heevNws tau ntev lawm kev cai los xaiv cov khoom alloying xws li chromium - ntau heev, tab sis tsis muaj qhov tseem ceeb ntxiv.
2. Tsab ntawv "B" qhia cov ntsiab lus ntawm tungsten hauv cov hlau.
3. "G" yog ib qho luv luv rau cov tshuaj manganese.
4. Thiab qhov tseeb tias tsis muaj tus lej ua ntej lossis tom qab cov ntawv txhais tau tias cov ntsiab lus ntawm txhua lub ntsiab lus saum toj no hauv cov ntsiab lus tsis ntau tshaj 1%.

Ntxiv rau cov qib steel, cov alloys tau muab faib ntxiv rau hauv cov chav kawm uas cais lawv los ntawm kev thov. HVG steel belongs rau chav kawm ntawm cov cuab yeej steel, los yog ntau precisely, cuab yeej-alloyed. Qhov no txhais tau hais tias cov hlau no muaj cov yam ntxwv txaus rau kev tsim cov cuab yeej rau ntau lub hom phiaj los ntawm nws.

Daim ntawv thov

HVG steel cov cuab yeej tsis tshua muaj cim, tab sis nws paub tseeb tias cov cuab yeej feem ntau yog tsim los ntawm cov hlau no, lub hom phiaj ntawm kev txiav hlau: cov kais dej rau cov xov sab hauv, reamers thiab txawm tias xyaum. Tsis tas li ntawd, CVG yog siv rau kev tsim cov tuag, tuag, xuas nrig ntaus thiab lwm yam khoom siv hlau ua haujlwm siab.

Steel composition

Yog cov hlau siv los ua cov cuab yeej muaj zog, yog li ntawd, nws tus kheej muaj, yog tias tsis zoo, ces cov yam ntxwv tseem ceeb heev. CVG steels tau txais cov khoom zoo sib xws vim muaj cov saturated muaj pes tsawg leeg, nyob rau hauv txhua tus neeg lub caijmuab cov alloy tej yam khoom. Nov yog daim ntawv teev tag nrho ntawm cov ntsiab lus alloying thiab lawv feem pua:

1. Iron - txog 94%. Ib lub ntsiab lus uas yog feem ntau ntawm cov hlau alloy, nrog rau cov khoom sib txuas rau tag nrho lwm cov alloying ntxiv.
2. Carbon - 1.25%. Qhov tseem ceeb tshaj plaws additive, vim nws yog carbon uas muab lub zog thiab hardness rau ib txwm mos hlau. Nws cov ntsiab lus nyob rau hauv muaj pes tsawg leeg yog ntau tshaj - 1%, uas cia li cais cov hlau raws li high-carbon steel.
3. Manganese - 0.95%. Nce alloy hnav tsis kam, load kuj, lub zog, hardenability thiab txo qhov kev pheej hmoo ntawm deformation thaum hardening.
4. Chrome - 1.5%. Oddly txaus, cov alloying no tseem tsim los txhim kho cov yam ntxwv ntawm lub zog ntawm CVG steel, nrog rau nws cov hardenability thiab txo qhov kev loj hlob ntawm carbide nplej tom qab kev kho cua sov.
5. Tungsten - 1.4%. Ua kom cov yam ntxwv muaj zog ntawm cov hlau, ua kom cov cua sov ua kom muaj zog.
6. Silicon - 0.25%. Ntxiv plasticity rau cov khoom tiav, tab sis me ntsis qib hardness.
7. tooj liab, npib tsib xee, molybdenum, leej faj thiab phosphorus - nyob rau hauv thaj tsam ntawm 0.3% ntawm tag nrho cov loj ntawm cov hlau. Nrog xws li cov ntsiab lus tsis tseem ceeb ntawm cov khoom zoo lossis qhov tsis zoo, cov hlau tsis ntxiv.

Hloov cov hlau

Ib qho kev lag luam raws li kev ua tiav thiab kev ua tiav zoo li metallurgy tsuas yog tsis tuaj yeem tsim tau ib qib tshwj xeeb ntawm cov hlau raws li thoob ntiaj teb, yog li dhau sijhawm ntau thiab ntau duantau alloys, qhov sib txawv ntawm uas tsis yog li ntawd tseem ceeb. Nyob rau hauv lub neej txhua hnub, xws li steels yog boldly hu ua hloov. Thiab rau CVG steel hauv qhov chaw qhib hauv tsev, muaj cov khoom hloov pauv xws li:

• 9XC;
• 9ХВГ;
• HVSH;
• SHKH15SG.

Daim ntawv teev npe no muaj cov alloys uas yog qhov zoo sib xws, tab sis txawv ntawm feem pua ntawm impurities lossis hauv lawv qhov teeb tsa nws tus kheej, uas feem ntau me ntsis txawv ntawm ib leeg.

Txawv teb chaws analogues

Metallurgical nroj tsuag smelt hlau tsis tau tsuas yog nyob rau hauv lub CIS lub teb chaws, tab sis kuj nyob deb txawv teb chaws, thiab nws cia li tshwm sim hais tias tib steel, los yog nws cov "cov txheeb ze" nyob ze nyob rau hauv muaj pes tsawg leeg, yog pom txhua txhua tam sim no thiab ces nyob rau hauv ib qho ntawm cov lub teb chaws nyob deb. Qhov no tsis yog qhov tsis tshua muaj tshwm sim thiab, piv txwv li, cov neeg raug yuam ua haujlwm nrog qee tus neeg xa khoom txawv teb chaws raug yuam kom paub cov khoom siv dab tsi uas lawv cuam tshuam nrog qhov tseeb. Zoo, rau cov neeg uas tsis muaj lub nra hnyav, koj tuaj yeem siv cov npe hauv qab no ntawm txawv teb chaws analogues ntawm CVG steel:

• USA - 01 lossis Т31507;
• Europe - 107WCr5;
• China - CrWMn;
• Japan - SKS2 lossis SKS3.

Nrog daim ntawv me me no ntawm tes, leej twg yuav tuaj yeem qhia tau tias cov hlau twg siv rau cov cuab yeej ua txawv teb chaws.