ISO 7412 ba ainihin ma'aunin duniya bane. Babu shi a cikin kasidar ISO, Ƙungiyar Ƙasa ta Duniya don Daidaitawa ba ta taɓa buga shi ba, kuma babu inda ya bayyana a cikin bayanan hukuma kamar ISO Online Browing Platform (OBP) ko IEC Webstore.
Wannan gaskiyar ita kaɗai ta bayyana dalilin da ya sa injiniyoyi, manajan sayayya, da masu dubawa masu inganci suka kasa gano ƙayyadaddun ISO 7412 - saboda babu irin wannan takaddar. Mun tabbatar da wannan a cikin gwaje-gwaje masu zaman kansu guda uku: rajista na hukuma na ISO, ƙungiyoyin ma'auni na ƙasa (SAC, DIN, BSI, JIS), da shekarun da suka gabata na takaddun masana'antu. Lokacin da abokan ciniki suka tambaye mu a Hebei dewell m karfe co., ltd don "Takaddun shaida na ISO 7412," mun dakata - sannan mu bi su ta ainihin abin da suke buƙata.
Rudani kusan ko da yaushe yana komawa zuwa ɗaya daga cikin tushe guda uku: alamomin da ba a buga ba akan kayan aikin gado, tsoffin lambobi na cikin gida sun yi kuskure ga ƙa'idodin ƙasashen duniya, ko kurakuran fassarar inda aka sanya “ISO” zuwa takamaiman wanda ba na ISO ba (misali, ma'aunin masana'anta mai lamba 7412). A cikin yanayi ɗaya a bara, abokin ciniki na Turai ya aiko mana da zane mai alamar "ISO 7412 - Haƙuri na Diamita Shear Pin." Mun ketare kowane tebur na haƙuri a cikin ISO 2768, ISO 286, da ISO 1101 - babu wanda ya dace. Ainihin magana shine Farashin 7412, Ƙa'idar Jamusanci da aka dakatar don ginshiƙan cylindricallocating fil - daidai nau'in Dewell ke ƙera a cikin bakin karfe da gami da ± 0.005 mm GD & T iko.
DIN 7412: Abin da yake Ainihin (kuma me yasa yake da mahimmanci)
DIN 7412 yana ma'anar buƙatun fasaha don ginshiƙan gano silinda - wanda kuma ake kira fil ɗin dowel ko alignment fil - wanda aka yi amfani da shi a cikin jigs, gyare-gyare, da majalisu daidai. Ko da yake an cire shi a cikin 2008, an ci gaba da yin nuni da shi a cikin zane-zanen injuna na gado, musamman a cikin sarƙoƙin samar da motoci da sararin samaniya a duk faɗin Jamus, Japan, da kudu maso gabashin Asiya.
Maɓalli na fasaha a ƙarƙashin DIN 7412 sun haɗa da:
Zaɓuɓɓukan kayan aiki: C45E karfe (taurare), 1.4301 bakin karfe, ko abokin ciniki takamaiman gami Matsayi na haƙuri: h6 don daidaitattun fil; h5 ko h4 don bambance-bambancen madaidaici Farfajiya: Ra ≤ 0.8 µm don yankunan aiki; cikakken tabbacin taurin kowane ma'aunin Rockwell C Tsarin kai: Zagaye kai, lebur kai, ko chamfered - kowanne da ma'anar undercut da miƙa mulki radii Muna samar da DIN 7412-madaidaitan fil a kowace rana a ginin mu mai girman eka 10 a Yongnian. Kowane batch yana fuskantar ingantacciyar injin aunawa (CMM) akan diamita na fil, daɗaɗɗa, da lissafi na kai - ba sau ɗaya kawai ba, amma a farawa, tsakiyar gudu, da dubawa na ƙarshe. Wannan shine yadda muke ba da garantin maimaita maimaitawa a cikin 400+ SKUs, gami da tsayin al'ada, nau'ikan zaren-in, da bambance-bambancen mai rufaffiyar PTFE don aikace-aikacen ƙananan gogayya.
Me yasa "ISO 7412" ke ci gaba da bayyana (kuma abin da za a yi maimakon)
Wasu masu samar da kayayyaki suna lissafin "ISO 7412" akan dandamalin kasuwancin e-commerce ko kasidar PDF azaman gajeriyar hannu - dacewa, ba da'awar yarda ba. Amma saukakawa yana haifar da haɗari. Ƙungiyar sayayya da ke ba da odar "ISO 7412 bolts" na iya karɓar kayan aikin da ba su dace da takamaiman takamaiman bayani ba. Rashin daidaiton ma'auni, ƙarfin juzu'in da ba daidai ba, ko ingantaccen magani saman na iya haifar da gazawar taro ko duba rashin daidaituwa.
Ga shirin aikin mu wanda aka gwada filin:
Bincika tushen: Nemi ainihin zane ko lambar tantancewa. Idan an karanta “ISO 7412”, nemi ƙungiyar da ta fito da shekarar bugawa. Ma'auni na halal sun ba da misali na ISO, ASTM, DIN, ko GB daidai. Ayyukan daidaitawa, ba lakabi ba: Shin sashin fil ne mai ganowa? Sannan DIN 7412, ISO 2339, ko GB/T 119.1 ya shafi. Ƙaƙwalwar ƙaras ɗin tsari ce? Sannan ASTM F3125 Grade A325 ko GB/T 1231 ke tafiyar da ita. Tabbatar da rahotannin gwaji: Rahoton gwajin injin buƙatu yana nuna ainihin ƙarfin ƙarfi (misali, 8.8 = 800 MPa min tensile, 640 MPa min yawan amfanin ƙasa), ƙimar ƙarfi, da sakamakon feshin gishiri - ba kawai akwatin “ISO 7412” mai hatimi ba. Mun ga abokan ciniki sun adana kwanaki 17-22 a cikin lokacin sake aiki kawai ta hanyar maye gurbin "ISO 7412" harshe mai banƙyama tare da madaidaicin kiran fasaha kafin fitar da PO.
Yadda Hebei Dewell ke Goyan bayan Biyayya ta Gaskiya - Ba Lakabi ba
A Dewell, ba mu sayar da ma'auni - muna ba da aikin ganowa, gwadawa, aikin da aka rubuta. Sassan R&D namu guda biyu sun ƙware wajen daidaita giɓi tsakanin nassoshi da suka gabata da mafi kyawun aiki na yanzu. Lokacin da abokin ciniki ya aika da zane yana ambaton "ISO 7412", injiniyoyinmu suna taswirar kowane nau'i, kayan aiki, da kammala buƙatun zuwa ƙa'idodi masu aiki, waɗanda za a iya aiwatarwa - sannan su inganta a kansu.
Kayan aikin mu yana ba da damar wannan riƙon: layin rufin zinc a cikin gida tare da ASTM B633 Class Fe/Zn 5 gwajin lalata, Cibiyoyin mashin ɗin CNC tare da ramuwa ta thermal na ainihin lokaci, da cikakken ganowa daga danyen bar hannun jari mai yawa lambar zuwa takardar shaidar fitarwa.
Don gano fil na musamman, muna bayar da:
Bakin karfe dowel fil na ISO 2339 (metric) ko ANSI B18.8.2 (inch) Hardened gami karfe fil tare da taurin 45-50 HRC da ≤0.008 mm runout Fakitin GD&T na al'ada - gami da juriyar matsayi zuwa datum A-B-C da sarrafa bayanan martaba Cikakkun takaddun: Takaddun shaida na Amincewa, rahotannin RoHS/REACH, da takaddun shaida na asali Lokacin jagora? Kwanaki 7 don samfurori. 15-20 kwanaki don samar da oda - tare da sifili sulhu a kan girma ko karfe tabbaci.
Akwai ƙa'idodi don hana gazawar - ba don cika takarda ba. Rikita "ISO 7412" tare da buƙatun injiniya na gaske yana lalata aminci, aminci, da amana. A Dewell, muna ɗaukar kowace tambaya ta musamman azaman haɗin gwiwa: fayyace niyya, tabbatar da ilimin lissafi, sannan gina lambobi masu mahimmanci. Domin lokacin da fil ɗin ganowa yana riƙe da jigin injin turbine ko ya daidaita tsarin baturin EV, babu daki don alamun masu riƙewa.
Idan nassoshi aikin ku Iso7412, fara nan: dewellfastener.com. Injiniyoyin mu za su gano daidaitaccen ma'aunin aiki - kuma su isar da kayan aikin da ya dace da shi, kowane lokaci.
