ISO 7412 si muyezo weniweni wapadziko lonse lapansi. Palibe m'ndandanda wa ISO, sichinasindikizidwepo ndi International Organisation for Standardization, ndipo sichipezeka paliponse m'malo ovomerezeka monga ISO Online Browsing Platform (OBP) kapena IEC Webstore.
Izi zokha zikufotokozera chifukwa chake mainjiniya, oyang'anira zogula zinthu, ndi akatswiri owerengera ndalama nthawi zonse amalephera kupeza zofunikira za ISO 7412 - chifukwa palibe chikalata chotere. Tatsimikizira izi pamacheke atatu odziyimira pawokha: kaundula wa ISO, mabungwe azamalamulo padziko lonse lapansi (SAC, DIN, BSI, JIS), ndi zaka makumi ambiri zolembedwa zamakampani ofulumira. Makasitomala akamatifunsa pa Malingaliro a kampani Hebei Dewell Metal Products Co., Ltd za "ISO 7412 satifiketi zotsatiridwa," timayima kaye - kenaka kuwatsata zomwe akufunikira.
Chisokonezocho pafupifupi nthawi zonse chimayambira kumodzi mwa magawo atatu: zilembo zolembedwa molakwika pazida zotengera zinthu zakale, ma code amakampani akale olakwika ndi miyezo yapadziko lonse lapansi, kapena zolakwika zomasulira pomwe "ISO" idayikidwa patsogolo kuti ikhale yosagwirizana ndi ISO (mwachitsanzo, mulingo wa fakitale wa 7412). Nthawi ina chaka chatha, kasitomala waku Europe adatitumizira chithunzi cholembedwa kuti "ISO 7412 - Shear Pin Diameter Tolerance." Tidatchulanso tebulo lililonse lololera mu ISO 2768, ISO 286, ndi ISO 1101 - palibe lofanana. Kufotokozera kwenikweni kunali Mtengo wa 7412, Muyezo wa ku Germany wosiyidwa wa zikhomo zokhala ndi cylindrical - ndendende mtundu wa Dewell amapanga muzitsulo zosapanga dzimbiri ndi zitsulo za alloy ndi ± 0.005 mm GD & T control.
DIN 7412: Zomwe Iri Kwenikweni (ndi Chifukwa Chake Imafunikira)
DIN 7412 imatanthawuza zofunikira zaukadaulo pamapini opangira ma cylindrical - omwe amatchedwanso ma pini a dowel kapena ma alignment pin - omwe amagwiritsidwa ntchito mu jigs, fixtures, ndi mapini olondola. Ngakhale idachotsedwa mu 2008, imatchulidwabe m'makina otengera zakale, makamaka pamakina operekera magalimoto ndi ndege ku Germany, Japan, ndi Southeast Asia.
Zofunikira zaukadaulo pansi pa DIN 7412 zikuphatikiza:
Zosankha zakuthupi: C45E chitsulo (cholimba), 1.4301 chitsulo chosapanga dzimbiri, kapena ma aloyi odziwika ndi kasitomala Gulu la kulolerana: h6 kwa zikhomo wamba; h5 kapena h4 pamitundu yolondola kwambiri Kumaliza pamwamba: Ra ≤ 0.8 µm pazigawo zogwira ntchito; kutsimikizira kuuma kwathunthu pamlingo wa Rockwell C Kusintha kwamutu: Mutu wozungulira, mutu wathyathyathya, kapena chamfered - chilichonse chimakhala ndi mawonekedwe osinthika komanso osinthika Timapanga mapini ogwirizana ndi DIN 7412 tsiku lililonse pamalo athu a maekala 10 ku Yongnian. Gulu lililonse limatsimikizira makina oyezera (CMM) pa pini mwake, concentricity, ndi geometry yamutu - osati kamodzi kokha, koma poyambira, pakati, ndikuwunika komaliza. Umu ndi momwe timatsimikizira kuti tidzabwerezanso pa ma SKU 400+, kuphatikiza kutalika kwa makonda, mitundu ya ulusi, ndi mitundu ina ya PTFE yomatira pamapulogalamu otsika kwambiri.
Chifukwa chiyani "ISO 7412" Imawonekerabe (ndi Zoyenera Kuchita M'malo mwake)
Otsatsa ena amalemba "ISO 7412" pamapulatifomu a e-commerce kapena ma catalogs a PDF ngati shorthand - yosavuta, osati kufuna kutsata. Koma kuphweka kumapanga chiopsezo. Gulu logula zinthu lomwe likuyitanitsa "ISO 7412 bolts" litha kulandira zida zomwe sizikugwirizana ndi zomwe sizikudziwika. Kusagwirizana kwapang'onopang'ono, kulimba kwamphamvu kolakwika, kapena chithandizo chapamwamba chosatsimikizirika kungayambitse kulephera kwa msonkhano kapena kuwunika kusagwirizana.
Nayi dongosolo lathu loyesedwa m'munda:
Tsatani gwero: Funsani chojambula choyambirira kapena nambala yake. Ngati iwerengedwa "ISO 7412", pemphani bungwe lopereka ndi chaka chofalitsidwa. Miyezo yovomerezeka imatchula zilembo za ISO, ASTM, DIN, kapena GB molondola. Zofananira, osati zilembo: Kodi gawolo ndi pini yopezera? Kenako DIN 7412, ISO 2339, kapena GB/T 119.1 ikugwira ntchito. Kodi ndi bawuti yometa mwadongosolo? Kenako ASTM F3125 Grade A325 kapena GB/T 1231 imalamulira. Tsimikizirani malipoti a mayeso: Malipoti oyezetsa mphero akuwonetsa kulimba kwenikweni kwamphamvu (mwachitsanzo, 8.8 = 800 MPa min tensile, 640 MPa min zokolola), kuuma kwamtengo, ndi zotsatira za kupopera mchere - osati bokosi losindikizidwa la "ISO 7412". Tawona makasitomala akusunga masiku 17-22 mu nthawi yokonzanso posintha chilankhulo chodziwika bwino cha "ISO 7412" ndi mawu omveka bwino asanatulutsidwe PO.
Momwe Hebei Dewell Amathandizira Kutsata Kwenileni - Osati Zolemba
Ku Dewell, sitimagulitsa miyezo - timapereka zomwe zimawoneka bwino, zoyesedwa, zolembedwa. Madipatimenti athu awiri a R&D amagwira ntchito yotseka mipata pakati pa maumboni achikale ndi machitidwe abwino apano. Makasitomala akatumiza chithunzi chosonyeza kuti "ISO 7412", mainjiniya athu amajambula miyeso iliyonse, zinthu, ndi zomaliza zomwe zimafunikira kuti zikhale zogwira ntchito, zomwe zingathe kutsatiridwa - kenako amatsimikizira motsutsana nawo.
Zomangamanga zathu zimathandizira kulimba kumeneku: mizere yokutira ya zinki yamkati yokhala ndi kuyesa kwa dzimbiri kwa ASTM B633 Class Fe/Zn 5, malo opangira makina a CNC okhala ndi chipukuta misozi chanthawi yeniyeni, komanso kutsatiridwa kwathunthu kuchokera ku nambala yaiwisi ya stock bar kupita ku satifiketi yotumiza kunja.
Kuti tipeze ma pini makamaka, timapereka:
Zikhomo zazitsulo zosapanga dzimbiri pa ISO 2339 (metric) kapena ANSI B18.8.2 (inchi) Zikhomo zachitsulo zolimba zolimba 45–50 HRC ndi ≤0.008 mm runout Phukusi la GD&T lachizolowezi - kuphatikiza kulolerana kwa datum A-B-C ndikuwongolera mbiri Zolemba zonse: Satifiketi Yogwirizana, Malipoti a RoHS/REACH, ndi satifiketi yoyambira Nthawi yotsogolera? 7 masiku kwa zitsanzo. 15-20 masiku kupanga madongosolo - ndi ziro kunyengerera pa dimensional kapena metallurgical kutsimikizira.
Miyezo ilipo yoletsa kulephera - osati kudzaza mapepala. Kusokoneza "ISO 7412" ndi zofunikira zenizeni za uinjiniya kumalepheretsa chitetezo, kudalirika, komanso kudalirika. Ku Dewell, timasankha funso lililonse ngati mgwirizano: fotokozani cholinga, tsimikizirani fiziki, kenako pangani manambala omwe ali ofunika. Chifukwa pini yopeza ikakhala ndi turbine blade jig kapena kugwirizanitsa gawo la batri la EV, palibe malo okhala ndi zilembo.
Ngati zilolezo za polojekiti yanu ISO 7412, yambani apa: dewellfastener.com. Mainjiniya athu amazindikira mulingo woyenera - ndikupereka zida zomwe zimakwaniritsa, nthawi iliyonse.
