1) Shin za a iya amfani da gwajin taurin Rockwell don gwada taurin bangon bututun ƙarfe?
Gwajin abu shine SA-213M T22 karfe bututu tare da diamita na waje na 16mm da kauri na bango na 1.65mm.Sakamakon gwajin gwaji na Rockwell hardness tester sune kamar haka: Bayan cire oxide da decarburized Layer a saman samfurin tare da injin niƙa, an sanya samfurin a kan tebur ɗin aiki mai siffar V kuma an yi gwajin taurin Rockwell kai tsaye a samansa na waje. ta amfani da HRS-150S na dijital nuni Rockwell hardness tester a lodi:980.7N.
Bayan gwajin, ana iya ganin cewa bututun ƙarfe a bango yana da ɗan nakasu, kuma sakamakon shine : ƙarancin ƙimar da aka auna na taurin Rockwell ya sa gwajin ya ɓace.
Dangane da GB/T 230.1-2018 "Gwajin Rockwell Hardness don kayan ƙarfe Sashe na 1: Hanyoyin Gwaji", ƙarfin Rockwell shine 80HRBW kuma ƙaramin kauri na samfurin shine 1.5mm.Matsakaicin samfurin No.1 shine 1.65mm, kauri daga cikin decarburized Layer shine 0.15 ~ 0.20mm, kuma kauri daga cikin samfurin bayan cire decarburized Layer shine 1.4 ~ 1.45mm, wanda yake kusa da ƙananan kauri na samfurin. an ƙayyade a GB/T 230.1-2018.
Yayin gwajin, saboda ba a tallafawa cibiyar samfurin, zai haifar da nakasar da dabara (wataƙila ba a iya gani ga ido tsirara) don haka ƙimar taurin Rockwell yana da ƙasa kaɗan.
2) Yadda ake zabar na samaRockwelltaurin gwajin gwajin karfe bututu:
Kamfaninmu ya gwada taurin saman bututun ƙarfe akai-akai kuma ya kai ga ƙarshe:
Gwajin taurin Rockwell na sama ko gwajin taurin Rockwell akan saman bututun ƙarfe na bakin ciki.Rashin isasshen goyon bayan bango zai haifar da nakasar samfurin kuma ya haifar da ƙananan sakamakon gwaji;
Idan sanya goyon bayan cylindrical a tsakiyar bakin ciki-bangon karfe tube, domin shi ba zai iya tabbatar da cewa indenter axis da loading shugabanci da surface na karfe bututu perpendicular zuwa surface, da kuma m surface na karfe bututu da kuma akwai zai haifar da rata na cylindrical goyon bayan rata tsakanin madauwari surface na karfe bututu da cylindrical goyon bayan surface, zai kuma haifar da sakamakon gwajin ne wajen low.
Mayar da gwajin taurin Vickers zuwa gwajin taurin Rockwell bayan goge kayan samfurin bututun ƙarfe, zai sami madaidaicin ƙimar taurin Rockwell.
2. Bayan cire oxide da decarburization Layer a saman saman bututun karfe da kuma sarrafa jirgin gwajin a saman saman waje da shigar da shi, ƙimar ta fi daidai idan aka kwatanta da Superficial Rockwell hardness tester tare da Rockwell hardness tester.
Lokacin aikawa: Mayu-28-2024
