Puas Muaj Qhov Yuav Tsum Tau Ua Rau Qhov Hardness ntawm Ncej Forgings

Cov Khoom Qib	Mob	Qhov nyuaj (HB lossis HRC)
Cov Hlau Carbon A105	Normalized los yog annealed	125–187 HB
Cov hlau sib xyaw 42CrMo4	Txias thiab tempered	28–34 HRC
Hlau tsis xeb 304	Cov tshuaj tau annealed	≤ 190 HB
Hlau tsis xeb 316L	Cov tshuaj tau annealed	≤ 200 HB
17-4PH SS	H900 mob	38–44 HRC
Duplex SS F51	Kev daws teeb meem kho	260–290 HB
Super Duplex F55	Kev daws teeb meem kho	270–310 HB

Lus Cim: Qhov nyuaj kawg nyob ntawm txoj kev forging, kev kho cua sov, thiab qhov loj ntawm cov khoom.

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Yuav Ua Li Cas Hardness Tau Qhia Hauv Cov Neeg Siv Khoom Cov Lus Qhia

Thaum cov neeg siv khoom tso cov xaj rau cov forgings ncej, qhov nyuaj feem ntau tau teev tseg hauv:

• Cov duab kos

• Cov lus qhia txog cov khoom siv

• Cov kev cai ntawm kev yuav khoom

• Cov lus qhia kho cua sov

Cov neeg siv khoom tuaj yeem thov kom muaj qhov nyuaj raws li:

• Brinell Hardness (HBW)rau cov forgings loj thiab mos

• Rockwell Hardness (HRC lossis HRB)rau cov hlau uas tau tawv

• Vickers Hardness (HV)rau cov ntu nyias nyias lossis kev kuaj hauv chaw kuaj mob

sakysteelua haujlwm ze nrog cov neeg siv khoom kom ntseeg tau tias cov forgings ua tau raws li qhov nyuaj profile xav tau rau lawv daim ntawv thov.

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Cov Yam Cuam Tshuam Rau Qhov Hardness ntawm Ncej Forging

Muaj ntau yam uas cuam tshuam rau qhov nyuaj kawg ntawm lub forged shaft:

1. Cov Khoom Siv Sib xyaw

Cov pa roj carbon thiab cov hlau alloy ntau dua feem ntau ua rau muaj kev tawv tawv ntxiv.

2. Cov Txheej Txheem Kho Mob Kub

• Kev ua kom sovua kom cov hlau mos

• Kev ua kom zoo li qubua kom cov nplej thiab tawv dua

• Kev Quenching thiab Temperingua rau lub zog thiab qhov nyuaj dua

• Kev Kho Mob Tshuajsiv rau cov hlau tsis xeb thiab duplex

• Kev laus zuj zusrau cov qib uas tau los nag zoo li 17-4PH

3. Qhov Loj ntawm Tshooj

Cov ncej loj uas muaj txoj kab uas hla loj txias qeeb dua, ua rau lub hauv paus tawv qis dua piv rau qhov saum npoo.

4. Kub thiab txias ntawm forging

Qhov kub tsis zoo lossis txias tsis sib xws tuaj yeem ua rau muaj kev hloov pauv ntawm qhov nyuaj thiab cov teeb meem me me.

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Cov Txheej Txheem Ntsuas Hardness rau Cov Khoom Forgings

At sakysteel, kev kuaj qhov nyuaj yog ib feem ntawm cov txheej txheem kev lees paub zoo. Kev kuaj yog ua raws li ASTM E10, E18, lossis EN ISO 6506/6508 nyob ntawm cov neeg siv khoom xav tau.

Cov txheej txheem siv ntau:

1. Kev Ntsuas Qhov Hnyav Brinell (HBW)

• Siv rau cov forgings loj

• Kev nkag mus rau hauv lub pob hlau thiab kev thauj khoom

• Ntsuas thaj chaw deformation ntawm qhov chaw

2. Kev Ntsuas Rockwell Hardness (HRC / HRB)

• Sai dua thiab yooj yim dua rau kev tswj hwm kev tsim khoom

• Siv lub tshuab txiav hlau los yog pob zeb diamond cone

• Feem ntau rau cov quenched thiab tempered shafts

3. Kev Ntsuas Qhov Hnyav Vickers (HV)

• Muaj tseeb thiab haum rau kev ntsuam xyuas hauv chaw kuaj mob

• Siv lub pob zeb diamond pyramid indenter

• Feem ntau siv rau ntawm cov ntu me me lossis qhov tseem ceeb

Qhov chaw sim qhov nyuaj:

• Qhov chaw (qhov tob 1 txog 2 hli)

• seem tseem ceeb (tshwj xeeb tshaj yog rau cov shafts loj)

• Nyob ze ntawm qhov sib txuas (yog tias siv tau)

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Kev Sib Xws thiab Kev Qhia Txog Qhov Nyuaj Siab

Rau cov shafts loj lossis kho cua sov, nws yog ib qho tseem ceeb uas yuav tsum xyuas seb puas muajkev sib npaug ntawm qhov nyuajhla ntau thaj chaw sib txawv. Qhov nyuaj tsis sib xws tuaj yeem qhia txog kev quenching tsis raug, kev sib cais, lossis cov qauv tsis sib xws.

Kev ntsuas qhov nyuaj yog siv los ntsuas qhov nyuaj ntawm:

• Qhov kawg ntawm lub shaft thiab nruab nrab ntawm qhov chaw

• Nto thiab lub hauv paus

• Kev taw qhia radial thiab axial

sakysteelmuab cov ntawv qhia txog qhov nyuaj raws li qhov thov, tshwj xeeb tshaj yog rau cov shafts tseem ceeb siv rau hauv cov khoom siv tig thiab cov ntawv thov siab.

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Yuav ua li cas yog tias Hardness Siab dhau los yog Qis dhau?

• Hardness siab dhau:

  • Kev pheej hmoo ntawm kev tawg yooj yim

  • Kev siv tshuab tsis zoo

  • Muaj kev pheej hmoo ntawm kev tawg ntau ntxiv

• Hardness qis dhau:

  • Tsis kam hnav tsis zoo

  • Lub neej qaug zog tsis txaus

  • Kev ua tsis tiav hauv qab kev thauj khoom

Cov kev daws teeb meem suav nrog kev kho dua tshiab, kev hloov khoom siv, lossis kev ua kom zoo dua qub. Txhua lub forged ncej ntawmsakysteeldhau los ntawm kev tshuaj xyuas kom paub tseeb tias nws poob rau hauv qhov kev kam rau siab rau nws qhov kev siv.

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Qhov Tseem Ceeb ntawm Hardness hauv Cov Ntawv Thov Sib Txawv

Cov Ncej Tsim Hluav Taws Xob

• Yuav tsum tau qhov sib npaug ntawm qhov nyuaj rau kev sib kis torque siab

• Feem ntau cov hlau alloy uas tau kho thiab tempered

Marine thiab Propeller Shafts

• Nruab nrab hardness, siab toughness

• Feem ntau yog cov hlau tsis xeb lossis duplex nrog ≤ 300 HB

Crankshafts thiab Gear Shafts

• Kev tawv tawv ntawm qhov chaw siab rau kev hnav tsis kam

• Tej zaum yuav muaj kev ua kom tawv nqaij zoo li nitriding lossis induction hardening

Cov Khoom Noj Khoom Haus thiab Tshuaj Ua Haujlwm Shafts

• Kev tiv thaiv xeb thiab kev ntxuav tau raug muab tso ua ntej

• Cov hlau tsis xeb uas tsis muaj zog mus rau qhov nruab nrab (≤ 200 HB)

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Xaus lus

Yog, muaj cov kev cai meej thiab feem ntau nruj raulub hardness ntawm cov hlau forgings, txhais los ntawm cov qauv kev lag luam thiab ua raws li cov kev xav tau ntawm daim ntawv thov. Qhov nyuaj cuam tshuam rau cov yam ntxwv kev ua tau zoo xws li kev tiv taus hnav, lub zog qaug zog, thiab kev tiv taus kev cuam tshuam.

Los ntawm kev tswj cov khoom siv xaiv, kev kho cua sov, thiab cov txheej txheem sim, cov chaw tsim khoom tuaj yeem ua kom ntseeg tau tias cov forgings ua tau raws li qhov nyuaj raws li qhov xav tau rau kev ua haujlwm txhim khu kev qha.

sakysteelxa cov ncej uas raug tsim ua ntej nrog kev lees paub qhov nyuaj, txhawb nqa los ntawm kev sim ua haujlwm, daim ntawv pov thawj, thiab ntau xyoo ntawm kev paub txog hlau. Txawm hais tias rau kev siv hauv dej hiav txwv, lub zog, kev khawb av, lossis kev tsim khoom, peb cov ncej forged ua tau raws li cov qauv siab tshaj plaws ntawm kev ua haujlwm ntev thiab kev ua tau zoo.