ISO 7412 tsis yog tus qauv thoob ntiaj teb tiag tiag. Nws tsis muaj nyob hauv ISO catalogue, yeej tsis tau luam tawm los ntawm Lub Koom Haum Thoob Ntiaj Teb rau Cov Qauv Txheej Txheem, thiab tsis pom qhov twg hauv cov ntaub ntawv tseem ceeb xws li ISO Online Browsing Platform (OBP) lossis IEC Webstore.
Qhov tseeb ib leeg piav qhia tias yog vim li cas cov kws tsim khoom, tus thawj tswj hwm kev yuav khoom, thiab cov neeg soj ntsuam zoo tsis tu ncua nrhiav ISO 7412 cov lus qhia tshwj xeeb - vim tias tsis muaj cov ntaub ntawv zoo li no. Peb tau txheeb xyuas qhov no hla peb qhov kev kuaj xyuas ywj pheej: ISO daim ntawv teev npe, lub teb chaws tus qauv (SAC, DIN, BSI, JIS), thiab kaum xyoo ntawm cov ntaub ntawv kev lag luam fastener. Thaum cov neeg siv khoom nug peb ntawm Hebei Dewell Hlau Khoom Co., Ltd. rau "ISO 7412 daim ntawv pov thawj kev ua raws cai," peb nres - tom qab ntawd taug kev los ntawm qhov lawv xav tau tiag tiag.
Qhov tsis meej pem yuav luag ib txwm rov qab mus rau ib qho ntawm peb qhov chaw: cov ntawv sau tsis raug ntawm cov cuab yeej cuab tam qub txeeg qub teg, cov tuam txhab sab hauv cov lej ua yuam kev rau cov qauv thoob ntiaj teb, lossis kev txhais lus yuam kev uas "ISO" tau ua ntej rau qhov tsis yog ISO spec (piv txwv li, lub Hoobkas tsim tus qauv 7412). Nyob rau hauv ib rooj plaub xyoo tas los, ib tug neeg European tau xa peb daim duab kos "ISO 7412 - Shear Pin Diameter Tolerance." Peb hla cov lus hais txog txhua qhov ntev ntawm cov lus pom zoo hauv ISO 2768, ISO 286, thiab ISO 1101 - tsis sib xws. Qhov siv tiag tiag yog TIAB SA 7412, ib qho kev txiav tawm German tus qauv rau cylindrical nrhiav tus pins - yog hom Dewell tsim nyob rau hauv stainless hlau thiab hlau alloy nrog ± 0.005 hli GD&T tswj.
DIN 7412: Qhov Tseeb Yog Dab Tsi (thiab Vim Li Cas Nws Tseem Ceeb)
DIN 7412 txhais cov txheej txheem kev cai rau cylindrical nrhiav tus pins - tseem hu ua dowel pins lossis alignment pins - siv hauv jigs, fixtures, thiab precision sib dhos. Txawm hais tias tshem tawm hauv xyoo 2008, nws tseem siv dav hauv cov cuab yeej siv cuab yeej cuab tam, tshwj xeeb tshaj yog nyob rau hauv tsheb thiab aerospace muab saw hlau thoob plaws lub teb chaws Yelemees, Nyiv, thiab cov teb chaws Asia.
Cov txheej txheem tseem ceeb hauv qab DIN 7412 suav nrog:
Cov khoom siv xaivC45E steel (hardened), 1.4301 stainless hlau, los yog cov neeg siv khoom tshwj xeeb alloys Chav kawm kam rau ua: h6 rau tus qauv pins; h5 los yog h4 rau high-precision variants Nto tas: Ra ≤ 0.8 µm rau thaj chaw ua haujlwm; tag nrho hardness pov thawj ntawm Rockwell C nplai Lub taub hau configuration: Lub taub hau puag ncig, lub taub hau tiaj tus, los yog chamfered - txhua tus uas tau hais tseg undercut thiab hloov radii Peb tsim DIN 7412-raws li pins txhua hnub ntawm peb qhov chaw 10-acre hauv Yongnian. Txhua batch tau txais kev sib koom tes ntsuas tshuab (CMM) validation ntawm tus pin txoj kab uas hla, concentricity, thiab lub taub hau geometry - tsis yog ib zaug xwb, tab sis thaum pib, nruab nrab-khiav, thiab zaum kawg soj ntsuam. Qhov ntawd yog li cas peb lav rov ua dua hla 400+ SKUs, suav nrog kev cai ntev, xov-hauv versions, thiab PTFE-coated variants rau cov ntawv thov kev sib txhuam qis.
Vim li cas "ISO 7412" tseem tshwm sim (thiab Yuav Ua Li Cas Hloov)
Qee cov neeg muag khoom sau "ISO 7412" ntawm e-commerce platforms lossis PDF catalogs raws li shorthand - yooj yim, tsis yog kev lees paub. Tab sis kev yooj yim ua rau muaj kev pheej hmoo. Pab pawg neeg yuav khoom xaj "ISO 7412 bolts" tuaj yeem tau txais cov khoom siv uas tsis tau lees paub qhov tshwj xeeb. Dimensional mismatch, lub zog tensile tsis raug, los yog kev kho deg tsis tau lees paub tuaj yeem ua rau kev sib dhos tsis ua haujlwm lossis kev tshuaj xyuas tsis raug.
Nov yog peb daim phiaj xwm kev sim ua teb:
Taug qab qhov chaw: Nug rau tus thawj kos duab lossis tus lej specification. Yog tias nws nyeem “ISO 7412”, thov lub tuam txhab tshaj tawm thiab tshaj tawm xyoo. Cov qauv raug cai hais txog ISO, ASTM, DIN, lossis GB prefixes kom raug. Match muaj nuj nqi, tsis yog daim ntawv lo: Puas yog ib feem yog tus pin nrhiav? Tom qab ntawd DIN 7412, ISO 2339, lossis GB / T 119.1 siv. Puas yog tus qauv shear bolt? Tom qab ntawd ASTM F3125 Qib A325 lossis GB / T 1231 tswj hwm. Tshawb xyuas cov ntawv xeem: Cov ntaub ntawv hais txog kev thov mills uas qhia txog lub zog tensile tiag tiag (piv txwv li, 8.8 = 800 MPa min tensile, 640 MPa min yield), hardness values, thiab ntsev tsuag cov txiaj ntsig - tsis yog lub thawv "ISO 7412" xwb. Peb tau pom cov neeg siv khoom txuag 17-22 hnub hauv lub sijhawm rov ua haujlwm tsuas yog los ntawm kev hloov cov lus tsis meej "ISO 7412" nrog cov lus qhia meej meej ua ntej tshaj tawm PO.
Yuav ua li cas Hebei Dewell txhawb kev ua raws li tiag tiag - Tsis Sau npe
Ntawm Dewell, peb tsis muag cov qauv - peb xa cov ntaub ntawv pov thawj, kuaj, cov ntaub ntawv ua haujlwm. Peb ob lub tuam tsev R & D tshwj xeeb hauv kev sib txuas ntawm qhov sib txawv ntawm cov ntaub ntawv siv tsis tu ncua thiab kev coj ua zoo tshaj plaws tam sim no. Thaum tus neeg siv khoom xa daim duab kos npe "ISO 7412", peb cov kws ua haujlwm kos duab txhua qhov loj me, cov khoom siv, thiab ua tiav qhov yuav tsum tau ua kom muaj zog, siv tau cov qauv - tom qab ntawd siv tau rau lawv.
Peb cov txheej txheem ua kom muaj kev nruj heev: hauv tsev zinc txheej kab nrog ASTM B633 Chav Kawm Fe / Zn 5 kev kuaj corrosion, CNC machining chaw nrog lub sijhawm thermal them nyiaj, thiab tag nrho batch traceability los ntawm raw bar Tshuag ntau tus lej rau export daim ntawv pov thawj.
Txhawm rau nrhiav tus pins tshwj xeeb, peb muab:
Stainless hlau dowel pins rau ISO 2339 (metric) lossis ANSI B18.8.2 (nti) Hardened alloy steel pins nrog hardness 45-50 HRC thiab ≤0.008 mm runout Kev cai GD&T pob khoom - suav nrog txoj haujlwm kam rau ua datum A-B-C thiab kev tswj hwm qhov profile Cov ntaub ntawv tag nrho: Daim ntawv pov thawj ntawm kev ua raws, RoHS / REACH cov ntaub ntawv, thiab daim ntawv pov thawj keeb kwm Lub sijhawm ua haujlwm? 7 hnub rau cov qauv. 15-20 hnub rau kev txiav txim ntau lawm - nrog xoom kev cuam tshuam ntawm qhov loj me lossis kev txheeb xyuas metallurgical.
Cov txheej txheem muaj los tiv thaiv kev ua tsis tiav - tsis txhob sau cov ntaub ntawv. Tsis meej pem "ISO 7412" nrog cov kev xav tau tiag tiag engineering ua rau muaj kev nyab xeeb, kev ntseeg siab, thiab kev ntseeg siab. Ntawm Dewell, peb kho txhua cov lus nug tshwj xeeb raws li kev sib koom tes: qhia meej lub hom phiaj, lees paub lub cev, tom qab ntawd tsim cov lej uas tseem ceeb. Vim hais tias thaum tus pin nrhiav tuav tuav lub turbine hniav jig los yog kho lub EV roj teeb module, tsis muaj chaw rau cov ntawv lo rau qhov chaw.
Yog koj qhov project references ISO 7412, pib ntawm no: dewellfastener.com. Peb cov engineers yuav txheeb xyuas tus qauv siv tau raug - thiab xa cov khoom siv uas ua tau raws li nws, txhua zaus.
