1) Rockwell hardness tester tuaj yeem siv los ntsuas qhov nyuaj ntawm cov yeeb nkab phab ntsa?
Cov khoom siv kuaj yog SA-213M T22 steel yeeb nkab nrog ib txoj kab uas hla ntawm 16 hli thiab phab ntsa tuab ntawm 1.65 hli.Cov txiaj ntsig ntawm Rockwell hardness tester yog raws li hauv qab no: Tom qab tshem tawm cov oxide thiab decarburized txheej ntawm cov qauv nto nrog lub grinder, cov qauv tau muab tso rau ntawm lub rooj ua haujlwm V-shaped thiab Rockwell hardness test tau ua ncaj qha rau ntawm nws sab nrauv, siv lub HRS-150S cov zaub Rockwell hardness tester ntawm lub load: 980.7N.
Tom qab kev sim, nws tuaj yeem pom tias cov yeeb nkab steel ntawm phab ntsa muaj qhov deformation me ntsis, thiab qhov tshwm sim yog: qhov ntsuas qis ntawm Rockwell hardness ua rau qhov kev xeem tsis raug.
Raws li GB / T 230.1-2018 « Rockwell Hardness test for metallic material Part 1: Test method », Rockwell hardness yog 80HRBW thiab qhov tsawg kawg nkaus thickness ntawm cov qauv yog 1.5mm.Lub thickness ntawm cov qauv No.1 yog 1.65mm, thickness ntawm decarburized txheej yog 0.15 ~ 0.20mm, thiab thickness ntawm cov qauv tom qab tshem tawm decarburized txheej yog 1.4 ~ 1.45 hli, uas yog ze rau qhov tsawg kawg nkaus thickness ntawm cov qauv. tau teev tseg hauv GB/T 230.1-2018.
Thaum lub sij hawm qhov kev xeem, vim hais tias cov qauv chaw tsis txaus siab, nws yuav ua rau subtle (tejzaum nws tsis pom ntawm lub qhov muag liab qab) deformation, yog li Rockwell hardness ntsuas tus nqi yog theej tsawg.
2) Yuav ua li cas xaiv qhov superficialRockwellhardness tester rau kev kuaj cov kav hlau:
Peb lub tuam txhab tau rov sim dua qhov hardness ntawm cov yeeb nkab steel nto thiab mus txog cov lus xaus hauv qab no:
Superficial Rockwell hardness test lossis Rockwell hardness test rau saum npoo ntawm cov yeeb nkab nyias-walled steel.Kev txhawb nqa phab ntsa tsis txaus yuav ua rau cov qauv deformation thiab ua rau cov txiaj ntsig tsis zoo;
Yog hais tias muab lub cylindrical kev txhawb nqa nyob rau hauv nruab nrab ntawm lub nyias-phab ntsa steel raj, vim hais tias nws tsis tuaj yeem xyuas kom meej tias lub indenter axis thiab loading kev taw qhia thiab qhov chaw ntawm cov yeeb nkab steel perpendicular mus rau qhov chaw, thiab sab nrauv ntawm cov yeeb nkab steel thiab. yuav ua rau muaj qhov sib txawv ntawm qhov kev txhawb nqa cylindrical ntawm qhov sib txawv ntawm qhov chaw ncig ntawm cov yeeb nkab steel thiab cov cylindrical kev txhawb nqa nto, tseem yuav ua rau qhov kev xeem tau qis dua.
Hloov Vickers hardness test rau Rockwell hardness test tom qab polishing steel yeeb nkab sampling inset, yuav tau txais ib tug zoo Rockwell hardness nqi.
2. Tom qab tshem tawm cov oxide thiab decarburization txheej nyob rau saum npoo ntawm cov yeeb nkab steel thiab machining lub dav hlau sim rau sab nrauv thiab inlaying nws, tus nqi yog ntau dua piv rau Superficial Rockwell hardness tester nrog Rockwell hardness tester.
Post lub sij hawm: May-28-2024
