Kode yo gukomera kwicyuma ni H. Ukurikije uburyo bwo kwipimisha butandukanye, guhagararira bisanzwe harimo Brinell (HB), Leeb (HLC (HIRE (HSC. HB ifite uburyo bwagutse bwa porogaramu, kandi HRC irakwiriye ibikoresho hamwe no gukomera kwinshi, nko gukomeretsa ubushyuhe. Itandukaniro nuko itara rya telefone rikomeye riratandukanye. Brinell Hardness Testers ni umupira utanga umupira, mugihe Rocksell Hardness Tester ni usntenter ya diyama.
HV-ikwiranye na Microscope. Vickers Gukomera (HV) Kanda hejuru yibintu hamwe numutwaro uri munsi ya 120k Ubuso bwubuso bwimyobo yerekana ibikoresho igabanijwe numutwaro agaciro, nicyo baskers ikomeye agaciro (HV). Gukomera gukomera bigaragazwa nka hv (reba GB / T4340-1999), kandi ipima ingero zitoroshye.
HL porness gukomera gukomera ni byiza gupima. Ikoresha ingaruka kumutwe kugirango bigire ingaruka zikomeye kandi bikabyara. Gukomera bibarwa na geneti yihuta yo gusubiramo ya punch kuri 1mm kuva kumurongo wicyitegererezo kumuvuduko. Formula ni: Leeb Hardness HL = 1000 × vb (rebound yihuta) / VA (umuvuduko wingirakamaro).
Portable Leeb Hardness irashobora guhinduka muri brinell (HB), Rockwell (HRC), Vickers (HV), inkombe (hl) gupima (hl). Cyangwa ukoreshe ihame rya Leeb kugirango upime neza cyane hamwe na brinell (HB), Rockwell (HRC), Vickers (HV), Leeb (HL), inkombe (hs).
HB - Brinell Hardness:
Brinell Hasi (HB) muri rusange ikoreshwa mugihe ibikoresho byoroshye, nkibintu bitari ferous, ibyuma bibanje kuvura ubushyuhe cyangwa nyuma yo gukomera. Gukomera gukomera (HRC) mubisanzwe bikoreshwa mubikoresho hamwe no gukomera kwinshi, nko gukomera nyuma yubushyuhe, nibindi.
BRINELL HARDSTS (HB) ni umutwaro wikizamini cyuburebure runaka. Umupira wo kumeneka cyangwa umupira wa tarbide wa diameter runaka ukanda hejuru yicyuma kugirango ugeragezwe. Umutwaro wikizamini ukomeza mugihe cyagenwe, hanyuma umutwaro uvanyweho kugirango upime diameter indentation hejuru kugirango igeragezwe. Agaciro ka Brinell Agaciro nicyo kiswa wabonetse mugugabana umutwaro nubuso bwa spherical ahantu ho kwerekana. Mubisanzwe, umupira ukomeye wubunini bumwe (mubisanzwe 10mm muri diameter) ukanda mumikorere hamwe numutwaro runaka (mubisanzwe 3000kg) kandi ukomeza mugihe runaka. Umutwaro umaze gukurwaho, igipimo cyumutwaro ahantu h'urumondero ni agaciro ka Brinell (HB), kandi igice ni Kilogram Force / MM2 (nm2).
Gukomera gukomera bigena urutonde rukomeye rukomeye rushingiye ku guhindura plastiki ubujyakuzimu bwa indentation. 0.002 mm ikoreshwa nkigice gikomeye. Iyo HB> 450 cyangwa icyitegererezo ni gito cyane, ikizamini gikomeye cya brinell ntigishobora gukoreshwa no gupima gupima gukomeye bikoreshwa. Ikoresha Diamond Cone hamwe na vertex inguni ya 120 ° cyangwa umupira wijimye ufite diameter ya 1.59 cyangwa 3.18m kugirango ukande hejuru yibigeragezo runaka, kandi gukomera kw'ibikoresho bibarwa uhereye ku myambarire. Ukurikije ubukana bwibikoresho byikizamini, bigaragarira muminzani itatu itandukanye:
HRA: Birakomeye byabonetse ukoresheje umutwaro wa 60kg hamwe na Diamond Cone itangwamo hamwe no gukomera kwinshi (nka carbiemed carbide, nibindi).
HRB: Nubukorikori bwabonetse ukoresheje umutwaro wa 100kg numuraba unangiye hamwe na diameter ya 1.58mm, bikoreshwa mubikoresho hamwe no gukomera kwinshi (nibindi).
HRC: Nubukorikori bwabonetse ukoresheje umutwaro wa 150kg hamwe na Diamond Cone itangwamo hamwe no gukomera cyane (nka steel ikomeye, nibindi).
Mubyongeyeho:
1.HRC bisobanura Rocksell Cleness C Igipimo.
2.HRC na HB bikoreshwa cyane mumusaruro.
3.hrc ikoreshwa intera HRC 20-67, ihwanye na HB225-650,
Niba gukomera ari hejuru yuru rwego, koresha gukomera gukomera igipimo hra,
Niba bikomeye biri munsi yuru rwego, koresha gukomera gukomeye b umunzan
Umubare wo hejuru wa bruntill ni HB650, idashobora kuba hejuru kurenza agaciro.
. Ikizamini cyumutwaro ni agaciro runaka. Igipimo cy'Abashinwa ni 150 kgf. Indenter ya Brinell Hardness Tester numupira wijimye (hbs) cyangwa umupira wa karbide (hbw). Ikizamini cyo kwipimisha kiratandukanye na diameter yumupira, kuva kuri 3000 kugeza 31.25 kgf.
5.Ibintu bikomeye cyane indentation ni bito cyane, kandi agaciro kapimwa karemwe. Birakenewe gupima ingingo nyinshi kugirango ubone agaciro impuzandengo. Birakwiriye ibicuruzwa byarangiye hamwe nibice bito kandi bishyizwe mubikorwa nkibintu bitangiza. Brinell Gukomera Indentation ni binini, agaciro kapimwe nukuri, ntabwo bikwiye ibicuruzwa byarangiye hamwe nibice bito, kandi mubisanzwe ntabwo byashyizwe ahagaragara nkibigeragezo bitangiza.
6. Agaciro kanini ka Rockwell ni numero itavuzweho izina adafite ibice. .
7. Gukomera gukomera bigaragazwa neza kuri terefone cyangwa muburyo butagaragara. Biroroshye gukora, byihuse kandi byitoti, kandi bikwiranye numusaruro mwinshi. Brinell Harness Irasaba MicroSCope gupima diameter ya indentation, hanyuma urebe kumeza cyangwa kubara, bikaba bitoroshye gukora.
8. Mubihe bimwe na bimwe, HB na HRC birashobora kumvugo bareba kumeza. Itondekanya yo kubara mumutwe irashobora kwandikwa hafi nka: 1HRC≈1 / 10hb.
Ikizamini gikomeye ni uburyo bworoshye kandi bworoshye bwo kwipimisha mubizamini byumutungo. Kugirango ukoreshe ikizamini gikomeye kugirango usimbuze ibizamini byumutungo, isano ihinduka hagati yubukomere nimbaraga birasabwa mubikorwa.
Imyitozo yagaragaje ko hari umubano uhuye nagereranijwe hagati yagaciro gakomeye k'ibikoresho by'icyuma ndetse n'agaciro gakomeye n'imbaraga. Kuberako agaciro gakomeye kigenwa nintangiriro yo guhinduranya plastike no kurwanya imiterere ya plastiki, imbaraga zibikoresho, irwanya imiterere ya plastike, nizimbere agaciro gakomeye.
Igihe cya nyuma: Kanama-16-2024
