Intambo ephelele DIN933 insimbi engagqwali Hex Head Bolt wholesale
Intambo ephelele DIN933 insimbi engagqwali Hex Head Bolt wholesale
Incazelo
SHESHAImpendulo
SHESHAIkhotheshini
SHESHAUkulethwa
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| Into | Intambo ephelele DIN933 insimbi engagqwali Hex Head Bolt wholesale |
| Okujwayelekile | DIN,ANSI,BS,ISO,JIS |
| Ibanga | A2-70/A4-80 |
| Usayizi | I-M3-M40 |
| Okubalulekile | SS201/SS304/SS316 |
| Ukwelashwa kwendawo | sobala |
| Imininingwane yokupakisha | ukupakisha ngenqwaba emakhathoni, bese ugqoka ama-pallet, noma ngokwezicelo zakho. |
| Idizayini yekhasimende | ithimba lethu lonjiniyela abanolwazi lingathuthukisa imikhiqizo futhi likhiqize ngokuhambisana namasampula, imidwebo noma imibono kuphela |
| Imigomo yokukhokha | FOB, CIF, CFR, L/C, noma ezinye. |
| Indlela yokulethwa | ngolwandle, ngomoya noma ngesevisi esheshayo |
| Izitifiketi | ISO9001 |
Incazelo yemininingwane
Izinsimbi eziqinile eziphakeme zizokhiqiza ukucwebezela lapho zifakwe uthayela.Udinga ukunakwa okukhethekile.
I-hydrogen embrittlement ngokuvamile ibonakala ngokuphuka kwesikhashana ngaphansi kwengcindezi.Kube khona iziphethu zezimoto, amawasha, izikulufu, iziphethu zeshidi nezinye izingxenye zikathayela, emahoreni ambalwa ngemva kokuphulwa komhlangano, isilinganiso sokuphuka singu-40% ~ 50%.Enqubweni yokusebenzisa izingxenye ze-cadmium-plated zomkhiqizo okhethekile, kwaba nokuqhekeka kwe-batch crack, futhi inkinga yokhiye kazwelonke yaxazululwa futhi kwenziwa inqubo eqinile ye-dehydrogenation.Ngaphezu kwalokho, kukhona ezinye embrittlement hydrogen akubonisi ukubambezeleka mkhuba ukuphuka, ezifana: electroplating isiphanyeko (insimbi yensimbi, ucingo lwethusi) ngenxa izikhathi eziningi electroplating futhi pickling plating, hydrogen Ukungena kubi kakhulu, ngokuvamile avele ukusetshenziswa fold kwenzeka i-brittle fracture phenomenon;I-mandrel ye-shotgun, ngemva kwezikhathi eziningana ze-chroming, yawela phansi futhi yaphuka;Ezinye izingxenye ezicishiwe (ukucindezeleka okukhulu kwangaphakathi) zizoqhekeka lapho zikhetha.Lezi zingxenye zine-hydrogenated kakhulu futhi ziyaqhekeka ngaphandle kokucindezeleka kwangaphandle, ezingasakwazi ukusetshenziselwa ukubuyisela ukuqina kwangempela nge-dehydrogenation.
Ukuphakama kwamandla ezinto ezibonakalayo, kukhulu ukuzwela kwe-hydrogen embrittlement.Lona umqondo oyisisekelo okufanele ucaciswe ochwepheshe bokwelapha okungaphezulu lapho behlanganisa imininingwane yenqubo ye-electroplating.Izinsimbi ezinamandla aqinile σb>105kg/mm2 ezidingwa izindinganiso zamazwe ngamazwe kufanele zibe ngaphansi kwengcindezi yangaphambi kokucwenga kanye nokwelashwa kwe-post-plating dehydrogenation ngokufanele.Imboni yezokundiza yaseFrance idinga ukwelashwa okuhambisanayo kwe-dehydrogenation ezingxenyeni zensimbi ezinamandla okukhiqiza angu-σs>90kg/mm2.
Ngenxa yokuxhumana okuhle phakathi kwamandla ensimbi nobulukhuni, kunembile futhi kulula ukwahlulela ukuzwela kwe-hydrogen embrittlement yezinto ngobulukhuni kunamandla.Ngoba umdwebo womkhiqizo ophelele kanye nenqubo yokwenza imishini kufanele imakwe ngobulukhuni bensimbi.Ku-electroplating, sithole ukuthi ubulukhuni bensimbi ezungeze i-HRC38 buqale ukukhombisa ubungozi bokuphuka kwe-hydrogen embrittlement.Ezingxenyeni ezingaphezulu kune-HRC43, ukukhishwa kwe-hydrogen kufanele kucatshangelwe ngemva kokucwetshwa.Uma ubulukhuni bucishe bube yi-HRC60, ukwelashwa kwe-dehydrogenation kufanele kwenziwe ngokushesha ngemva kokwelashwa kwendawo, ngaphandle kwalokho izingxenye zensimbi zizoqhekeka phakathi namahora ambalwa.
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