Xov xwm - Slag Scraper Conveyor Chain (Round Link Chain) Cov ntaub ntawv thiab Hardness

Rauround txuas chainssiv nyob rau hauv slag scraper conveyors, cov ntaub ntawv hlau yuav tsum muaj lub zog tshwj xeeb, hnav tsis kam, thiab muaj peev xwm tiv taus qhov kub thiab txias thiab abrasive ib puag ncig.

Ob leeg 17CrNiMo6 thiab 23MnNiMoCr54 yog cov hlau zoo tshaj plaws uas feem ntau siv rau kev siv hnyav xws li cov hlua txuas txuas hauv slag scraper conveyors. Cov hlau no paub txog lawv qhov zoo heev hardness, toughness, thiab hnav tsis kam, tshwj xeeb tshaj yog thaum raug cov ntaub ntawv hardening los ntawm carburizing. Hauv qab no yog cov lus qhia ntxaws txog kev kho cua sov thiab carburizing rau cov ntaub ntawv no:

17CrNiMo6 (1.6587)

Qhov no yog chromium-nickel-molybdenum alloy steel nrog zoo heev core toughness thiab deg hardness tom qab carburizing. Nws yog dav siv nyob rau hauv lub zog, chains, thiab lwm yam Cheebtsam uas yuav tsum tau siab hnav tsis kam.

Kev kho cua sov rau 17CrNiMo6

1. Normalizing (Yeem):

- Lub hom phiaj: Kho cov qauv nplej thiab txhim kho machinability.

- Kub: 880-920 ° C.

- Cua txias: Cua txias.

2. Carburizing:

- Lub hom phiaj: Ua kom cov pa roj carbon monoxide ntau ntxiv los tsim cov txheej txheej tawv, hnav-tiv taus.

- Kub: 880-930 ° C.

- Atmosphere: Carbon-nplua nuj ib puag ncig (xws li, roj carburizing nrog endothermic gas los yog kua carburizing).

- Sijhawm: Nyob ntawm qhov xav tau qhov tob (feem ntau 0.5-2.0 mm). Piv txwv li:

- 0.5 hli qhov tob: ~ 4-6 teev.

- 1.0 hli qhov tob: ~ 8-10 teev.

- Muaj peev xwm carbon: 0.8-1.0% (kom ua tiav cov ntsiab lus siab ntawm cov pa roj carbon).

3. Quenching:

- Lub Hom Phiaj: Hloov cov pa roj carbon ntau txheej txheej rau hauv hard martensite.

- Kub: ncaj qha tom qab carburizing, quench hauv roj (xws li, ntawm 60-80 ° C).

- Txias tus nqi: Tswj kom tsis txhob muaj kev cuam tshuam.

4. Tempering:

- Lub hom phiaj: Txo brittleness thiab txhim kho toughness.

- Kub: 150-200 ° C (rau siab hardness) los yog 400-450 ° C (kom zoo dua toughness).

- Sijhawm: 1-2 teev.

5. Qhov kawg Hardness:

- Nto Hardness: 58-62 HRC.

- Core Hardness: 30-40 HRC.

23MnNiMoCr54 (1.7131)

Qhov no yog manganese-nickel-molybdenum-chromium alloy hlau nrog zoo heev hardenability thiab toughness. Nws feem ntau yog siv rau hauv cov khoom uas xav tau lub zog siab thiab hnav tsis kam.

Kev kho cua sov rau 23MnNiMoCr54

1. Normalizing (Yeem):

- Lub hom phiaj: Txhim kho uniformity thiab machinability.

- Kub: 870-910 ° C.

- Cua txias: Cua txias.

2. Carburizing:

- Lub Hom Phiaj: Tsim kom muaj cov pa roj carbon ntau txheej rau hnav tsis kam.

- Kub: 880-930 ° C.

- Atmosphere: Carbon-nplua nuj ib puag ncig (xws li, roj lossis kua carburizing).

- Sijhawm: Nyob ntawm qhov xav tau qhov tob (zoo ib yam li 17CrNiMo6).

- Muaj peev xwm carbon: 0.8-1.0%.

3. Quenching:

- Lub hom phiaj: Hardens txheej txheej.

- Kub: Quench hauv roj (piv txwv li, ntawm 60-80 ° C).

- Txias tus nqi: Tswj kom txo qis distortion.

4. Tempering:

- Lub hom phiaj: Sib npaug hardness thiab toughness.

- Kub: 150-200 ° C (rau siab hardness) los yog 400-450 ° C (kom zoo dua toughness).

- Sijhawm: 1-2 teev.

5. Qhov kawg Hardness:

- Nto Hardness: 58-62 HRC.

- Core Hardness: 30-40 HRC.

Qhov tseem ceeb Parameter rau Carburizing

- Case Depth: Feem ntau 0.5-2.0 mm, nyob ntawm daim ntawv thov. Rau slag scraper chains, rooj plaub qhov tob ntawm 1.0-1.5 mm feem ntau haum.

- Cov ntsiab lus Carbon Deg: 0.8-1.0% kom ntseeg tau tias muaj zog hardness.

- Quenching Medium: Roj yog nyiam rau cov hlau no kom tsis txhob tawg thiab tawg.

- Tempering: qis tempering kub (150-200 ° C) yog siv rau qhov siab tshaj plaws hardness, thaum kub siab dua (400-450 ° C) txhim kho toughness.

Cov txiaj ntsig ntawm Carburizing rau 17CrNiMo6 thiab 23MnNiMoCr54

1. High Deg Hardness: Ua tiav 58-62 HRC, muab kev hnav zoo heev.

2. Cov tub ntxhais tawv tawv: Ua kom muaj lub cev muaj zog (30–40 HRC) kom tiv taus qhov cuam tshuam thiab qaug zog.

3. Durability: Zoo tagnrho rau qhov chaw hnyav xws li slag tuav, qhov chaw puas thiab cuam tshuam.

4. Tswj Case Depth: Tso cai kho raws li daim ntawv thov tshwj xeeb.

Kev txiav txim siab tom qab kev kho mob

1. Shot Peening:

- Txhim kho lub zog qaug zog los ntawm inducing compressive stresses ntawm qhov chaw.

2. Nto Finishing:

- Kev sib tsoo lossis polishing tuaj yeem ua tiav kom ua tiav qhov xav tau ntawm qhov chaw tiav thiab qhov tseeb qhov tseeb.

3. Kev Tswj Xyuas Zoo:

- Ua qhov kev sim hardness (piv txwv li, Rockwell C) thiab kev tshuaj xyuas microstructural kom ntseeg tau tias cov ntaub ntawv qhov tob thiab hardness.

Kev ntsuam xyuas hardness yog ib kauj ruam tseem ceeb hauv kev ua kom zoo thiab ua haujlwm ntawm cov hlua txuas txuas ua los ntawm cov ntaub ntawv xws li 17CrNiMo6 thiab 23MnNiMoCr54, tshwj xeeb tshaj yog tom qab carburizing thiab kho cua sov. Hauv qab no yog cov lus qhia dav dav thiab cov lus pom zoo rau kev ntsuas kev sib txuas ntawm cov saw hardness:

Qhov tseem ceeb ntawm Kev Ntsuas Hardness

1. Nto Hardness: Ua kom cov saw txuas carburized txheej tau ua tiav qhov xav tau hnav tsis kam.

2. Core Hardness: Txheeb xyuas qhov toughness thiab ductility ntawm cov saw txuas cov khoom tseem ceeb.

3. Kev Tswj Xyuas Zoo: Paub meej tias cov txheej txheem kho cua sov tau ua tiav lawm.

4. Consistency: Ua kom muaj kev sib npaug ntawm cov saw txuas.

Round Link Chain Hardness Test Methods

Rau cov saw hlau carburized, cov txheej txheem hauv qab no yog siv los ntsuas qhov nyuaj:

1. Rockwell Hardness Test (HRC)

- Lub hom phiaj: ntsuas qhov tawv hardness ntawm carburized txheej.

- Scale: Rockwell C (HRC) yog siv rau cov khoom siv hardness siab.

- Txheej txheem:

- Lub pob zeb diamond cone indenter yog nias rau hauv cov saw txuas saum npoo hauv qab qhov loj.

- Qhov tob ntawm kev nkag mus yog ntsuas thiab hloov mus rau tus nqi hardness.

- Cov ntawv thov:

- Zoo tagnrho rau kev ntsuas qhov tawv tawv (58-62 HRC rau carburized txheej).

- Khoom siv: Rockwell hardness tester.

2. Vickers Hardness Test (HV)

- Lub hom phiaj: ntsuas hardness ntawm cov ntsiab lus tshwj xeeb, suav nrog rooj plaub thiab cov tub ntxhais.

- Nplai: Vickers hardness (HV).

- Txheej txheem:

- Lub pob zeb diamond pyramid indenter yog nias rau hauv cov khoom.

- Cov kab pheeb ces kaum ntev ntawm qhov indentation yog ntsuas thiab hloov mus rau hardness.

- Cov ntawv thov:

- Haum rau kev ntsuas hardness gradients los ntawm qhov chaw mus rau lub hauv paus.

- Khoom siv: Vickers hardness tester.

3. Microhardness Test

- Lub hom phiaj: ntsuas hardness ntawm qib microscopic, feem ntau siv los ntsuas qhov hardness profile thoob plaws rooj plaub thiab cov tub ntxhais.

- Scale: Vickers (HV) lossis Knoop (HK).

- Txheej txheem:

- Ib qho me me indenter yog siv los ua micro-indentations.

- Lub hardness yog xam raws li qhov indentation loj.

- Cov ntawv thov:

- Siv los txiav txim qhov hardness gradient thiab cov ntaub ntawv qhov tob.

- Khoom siv: Microhardness tester.

4. Brinell Hardness Test (HBW)

- Lub hom phiaj: ntsuas hardness ntawm cov khoom tseem ceeb.

- Nplai: Brinell hardness (HBW).

- Txheej txheem:

- Lub pob tungsten carbide yog nias rau hauv cov khoom raws li qhov tshwj xeeb.

- Lub cheeb ntawm indentation yog ntsuas thiab hloov mus rau hardness.

- Cov ntawv thov:

- Haum rau kev ntsuas cov tub ntxhais hardness (30-40 HRC sib npaug).

- Khoom siv: Brinell hardness tester.

Hardness Test Procedure rau Carburized Chains

1. Surface Hardness Testing:

- Siv Rockwell C (HRC) nplai los ntsuas qhov hardness ntawm carburized txheej.

- Ntsuam xyuas ntau cov ntsiab lus ntawm qhov chaw ntawm cov saw txuas kom ntseeg tau tias muaj kev sib haum xeeb.

- Cia siab tias hardness: 58-62 HRC.

2. Core Hardness Testing:

- Siv Rockwell C (HRC) lossis Brinell (HBW) nplai los ntsuas qhov hardness ntawm cov khoom tseem ceeb.

- Ntsuam xyuas cov tub ntxhais los ntawm kev txiav ib ntu ntawm cov saw txuas thiab ntsuas qhov nyuaj ntawm qhov chaw.

- Cia siab tias hardness: 30-40 HRC.

3. Hardness Profile Testing:

- Siv Vickers (HV) lossis Microhardness test los ntsuas qhov hardness gradient los ntawm qhov chaw mus rau qhov tseem ceeb.

- Npaj ib ntu ntu ntawm cov saw txuas thiab ua kom muaj qhov sib txawv ntawm ib ntus (piv txwv li, txhua 0.1 hli).

- Teem lub hardness qhov tseem ceeb los txiav txim siab qhov zoo ntawm qhov tob (feem ntau qhov hardness poob rau 550 HV lossis 52 HRC).

Pom zoo Hardness Values rau Slag Scraper Conveyor Chain

- Nto Hardness: 58-62 HRC (tom qab carburizing thiab quenching).

- Core Hardness: 30-40 HRC (tom qab tempering).

- Siv tau qhov tob: Qhov tob ntawm qhov hardness poob mus rau 550 HV lossis 52 HRC (feem ntau 0.5-2.0 hli, nyob ntawm qhov yuav tsum tau ua).

Hardness Values rau Slag Scraper Conveyor Chain

Kev Tswj Xyuas Zoo thiab Cov Qauv

1. Kev xeem zaus:

- Ua qhov kev sim hardness ntawm ib tus qauv sawv cev ntawm chains los ntawm txhua pawg.

- Ntsuam xyuas ntau qhov txuas kom ntseeg tau tias sib xws.

2. Cov qauv:

- Ua raws li cov qauv thoob ntiaj teb rau kev sim hardness, xws li: ISO 6508

Cov lus pom zoo ntxiv rau Round Link Chain Hardness Test

1. Ultrasonic Hardness Test

- Lub hom phiaj: Txoj kev tsis muaj kev puas tsuaj los ntsuas qhov tawv tawv.

- Txheej txheem:

- Siv ib qho ultrasonic sojntsuam los ntsuas qhov hardness raws li qhov kev sib cuag impedance.

- Cov ntawv thov:

- Pab tau rau kev sim cov saw tiav yam tsis muaj kev puas tsuaj rau lawv.

- Khoom siv: Ultrasonic hardness tester.

2. Kev ntsuas qhov tob

- Lub hom phiaj: Txiav txim siab qhov tob ntawm cov saw txuas hardened txheej.

-Txoj kev:

- Kev Ntsuas Microhardness: Ntsuas qhov tawv ntawm qhov tob sib txawv los txheeb xyuas cov ntaub ntawv qhov tob (qhov twg hardness poob mus rau 550 HV lossis 52 HRC).

- Metallographic Analysis: Tshawb xyuas ntu ntu hauv qab lub tshuab ntsuas kom pom qhov pom qhov tob ntawm rooj plaub.

- Txheej txheem:

- Txiav ib ntu ntawm cov saw txuas.

- Polish thiab etch tus qauv los qhia txog microstructure.

- Ntsuas qhov tob ntawm txheej hardened.

Hardness Test Workflow

Ntawm no yog ib kauj ruam ntawm kev ua haujlwm rau kev sim hardness ntawm carburized chains:

1. Kev npaj ua qauv:

- Xaiv ib tus neeg sawv cev txuas txuas los ntawm pawg.

- Ntxuav qhov chaw kom tshem tawm tej yam kab mob los yog nplai.

- Rau cov tub ntxhais hardness thiab hardness profile kuaj, txiav ib ntu ntawm qhov txuas.

2. Surface Hardness Testing:

- Siv Rockwell hardness tester (HRC nplai) los ntsuas qhov tawv tawv.

- Siv ntau qhov kev nyeem ntawv ntawm qhov chaw sib txawv ntawm qhov txuas kom ntseeg tau tias muaj kev sib haum xeeb.

3. Core Hardness Testing:

- Siv Rockwell hardness tester (HRC scale) los yog Brinell hardness tester (HBW scale) los ntsuas qhov tseem ceeb hardness.

- Ntsuam xyuas qhov nruab nrab ntawm qhov sib txuas sib txuas.

4. Hardness Profile Testing:

- Siv Vickers lossis microhardness tester los ntsuas qhov nyuaj ntawm lub sijhawm tsis tu ncua los ntawm qhov chaw mus rau qhov tseem ceeb.

- Teem lub hardness qhov tseem ceeb los txiav txim qhov tob ntawm rooj plaub.

5. Cov ntaub ntawv thiab kev tshuaj xyuas:

- Sau tag nrho cov hardness qhov tseem ceeb thiab cov ntaub ntawv qhov tob ntsuas.

- Sib piv cov txiaj ntsig nrog cov kev cai tshwj xeeb (xws li, qhov tawv tawv ntawm 58-62 HRC, core hardness ntawm 30-40 HRC, thiab rooj plaub qhov tob ntawm 0.5-2.0 mm).

- Txheeb xyuas txhua qhov sib txawv thiab ua kom raug yog tias tsim nyog.

Common Challenges thiab Solutions

1. Inconsistent Hardness:

- Ua rau: Tsis sib xws carburizing lossis quenching.

- Kev daws: Ua kom muaj qhov kub thiab txias thiab muaj peev xwm carbon thaum lub sij hawm carburizing, thiab agitation kom zoo thaum quenching.

2. Tsawg Deg Hardness:

- Ua rau: Cov ntsiab lus carbon tsis txaus lossis tsis raug quenching.

- Kev daws: Txheeb xyuas cov peev txheej carbon thaum lub sij hawm carburizing thiab xyuas kom zoo quenching tsis (xws li, roj kub thiab txias npaum li cas).

3. Cov ntaub ntawv ntau dhau:

- Ua rau: Lub sijhawm ntev carburizing lossis kub carburizing siab.

- Kev daws: Optimize carburizing lub sij hawm thiab qhov kub thiab txias raws li qhov xav tau rooj plaub qhov tob.

4. Distortion Thaum quenching:

- Ua rau: ceev ceev lossis tsis sib xws.

- Kev daws: Siv cov kev tswj quenching (xws li, roj quenching nrog agitation) thiab xav txog kev kho kev ntxhov siab.

Standards thiab References

ISO 6508: Rockwell hardness test

ISO 6507: Vickers hardness test

ISO 6506: Brinell hardness test

- ASTM E18: Cov txheej txheem xeem rau Rockwell hardness.

- ASTM E384: Tus qauv ntsuas txoj kev rau microindentation hardness.

Cov lus pom zoo kawg

1. Regular Calibration:

- Calibrate hardness kuaj cov cuab yeej tsis tu ncua siv cov ntaub ntawv pov thawj siv los xyuas kom meej.

2. Kev cob qhia:

- Xyuas kom cov neeg ua haujlwm tau txais kev cob qhia hauv cov txheej txheem sim hardness thiab siv cov cuab yeej siv.

3. Kev Tswj Xyuas Zoo:

- Siv cov txheej txheem tswj kev ua tau zoo, suav nrog kev sim hardness tsis tu ncua thiab cov ntaub ntawv.

4. Kev koom tes nrog cov neeg muab khoom:

- Ua haujlwm ze nrog cov neeg muab khoom siv thiab cov chaw kho cua sov kom ntseeg tau zoo ib yam.

Post lub sij hawm: Feb-04-2025

Slag Scraper Conveyor Chain (Round Link Chain) Cov ntaub ntawv thiab Hardness

17CrNiMo6 (1.6587)

23MnNiMoCr54 (1.7131)

Qhov tseem ceeb Parameter rau Carburizing

Cov txiaj ntsig ntawm Carburizing rau 17CrNiMo6 thiab 23MnNiMoCr54

Kev txiav txim siab tom qab kev kho mob

Qhov tseem ceeb ntawm Kev Ntsuas Hardness

Round Link Chain Hardness Test Methods

Hardness Test Procedure rau Carburized Chains

Pom zoo Hardness Values ​​rau Slag Scraper Conveyor Chain

Kev Tswj Xyuas Zoo thiab Cov Qauv

Cov lus pom zoo ntxiv rau Round Link Chain Hardness Test

Hardness Test Workflow

Common Challenges thiab Solutions

Standards thiab References

Cov lus pom zoo kawg

Tso koj cov lus:

Pom zoo Hardness Values rau Slag Scraper Conveyor Chain