Izidingo Zekhwalithi Ye-DIN 6914 Bolts ene-DIN 6915 Nuts

Isingeniso

IIdatha ye-DIN6914kanye nenhlanganisela yamantongomane e-DIN6915 imelela uhlelo oluqinile lokuqiniswa olusetshenziswa kabanzi ezinhlelweni zobunjiniyela besakhiwo, ikakhulukazi ekwakhiweni kwensimbi. Lokhu kumatanisa kuklanyelwe ngokukhethekile uxhumo lwesakhiwo olulayishwe ngaphambili lapho amandla okubamba okuphezulu nokusebenza okuthembekile ngaphansi kokulayisha okuguquguqukayo kuyadingeka. Izimfuneko zekhwalithi zalezi zingxenye zichazwa ngokuqinile ngamazinga e-German Institute for Standardization (DIN) kanye nokucaciswa kwamazwe ngamazwe okuhambisanayo ukuze kuqinisekiswe ukuphepha, ukuqina, nokusebenza ezinhlelweni ezibucayi.

Izidingo Zempahla

I-Bolt Material (DIN 6914)

I-DIN 6914 amabhawodi esakhiwo aqine kakhulu kumele enziwe ngensimbi ehlangabezana nezidingo zempahla eqinile:
- Ibanga lensimbi: Ngokujwayelekile i-10.9 ngokuya nge-ISO 898-1, ekhombisa amandla amancane we-1000 MPa kanye namandla esivuno angama-900 MPa
- Ukwakheka kwamakhemikhali: Amaphesenti alawulwayo ekhabhoni (0.20-0.55%), i-manganese (0.40-1.70%), i-phosphorus (ubukhulu obungu-0.025%), nesibabule (ubukhulu obungu-0.025%)
- Ukwelashwa kokushisa: Kumelwe kudlule izinqubo zokucisha kanye nokufudumeza ukuze kuzuzwe izici ezidingekayo zemishini
- Ukuhlolwa kwezinto ezibonakalayo: Ukuhlolwa kweqoqo kuyadingeka ukuze kube lukhuni, amandla aqinile, nokumelana nomthelela

I-Nut Material (DIN6915)

UkumatanisaIzingxenye ze-DIN6915ibe nemininingwane yezinto ehambisanayo:
- Ibanga lensimbi: Ngokujwayelekile ibanga le-10 ngokwe-ISO 898-2, elihambisana nekilasi lamandla ebhawodi
- Izidingo zokuqina: 272-353 HV30 ukuqinisekisa ukusatshalaliswa komthwalo okulungile ngaphandle kokuguqulwa
- Ukuvumelana: Kumele kube nokumelana okulinganayo noma okuphakeme kwezinga lokushisa kunento yebhawudo

I-Dimensional Tolerances

I-Bolt Dimensions (DIN 6914)

- Ukubekezelelwa kobubanzi: Ububanzi be-Shank kufanele bugcine ukubekezelelwa okungu-h12 kumabhawodi we-M12-M24 kanye no-h13 kumadayamitha amakhulu
- Ukubekezelelwa kobude: ±1.5 mm ngobude ≤200 mm, ±2.0 mm ngobude > 200 mm
- Izidingo zomucu: Intambo ye-Metric coarse ngokuya nge-ISO 898-1 enekilasi lokubekezelela le-6g
- Ubukhulu bekhanda: Ububanzi bekhanda eliyi-Hexagon kuwo wonke amafulethi kufanele buhambisane ne-ISO 4014 nesigaba sokubekezelelana A

Nut Dimensions (DIN 6915)

- Izidingo zobude: Ubude obuncane obungu-0.8d (lapho u-d kuwubukhulu obujwayelekile)
- Ububanzi kuwo wonke amafulethi: Kufanele buhambisane ne-ISO 4032 yamantongomane e-hex anesigaba A sokubekezelela
- Ukulingana kochungechunge: Intambo yangaphakathi kufanele ibe isigaba sokubekezelela esingu-6H nge-ISO 965-1 ngayinye
- I-Chamfer angle: 15-30 ° kubo bobabili ubuso obuthwele

Izakhiwo Zemishini

Ukusebenza kwe-Bolt Mechanical

- Amandla okuqina: Ubuncane be-MPa eyi-1000 (yebanga le-10.9)
- Amandla okukhiqiza: Ubuncane be-MPa engama-900 (yebanga le-10.9)
- Ubude ngesikhathi sekhefu: Ubuncane be-9%
- Amandla omthelela: Ubuncane obungu-27 J ku -20°C (ngosayizi ≥M16)
- Ukuqina: 32-39 HRC (isikali se-Rockwell C)

Nut Mechanical Ukusebenza

- Ingcindezi yomthwalo wobufakazi: Kufanele imelane no-120% wamandla amancane okudonsa ibhawodi
- I-Ductility: Akumele iqhekeke lapho inwetshwa nge-mandrel ibe ngu-120% wobubanzi obujwayelekile
- Ukuqina: Kumelwe kube phakathi kwebanga elishiwo ukuze kuvinjelwe ukugaya ngesikhathi sokuqinisa

Ukwelashwa Okungaphezulu Nokuvikela Ukugqwala

- Indawo ye-Bolt: Ivamise ukushiswa idiphu (ubuncane be-50μm ukunamathela) noma i-zinc eyenziwe ngomshini (5-15μm) ene-chromate passivation
- Indawo yamantongomane: Kufanele ibe nesistimu yokunamathela ehambisanayo ukuze kugwenywe ukugqwala kwe-bimetallic
- Ukugcotshwa: Imvamisa ukugcotshwa kusengaphambili nge-wax-based noma i-polymer coefficients ukuze kuzuzwe ukungqubuzana okungaguquki
- **I-hydrogen embrittlement**: Ukubhaka kwangemva kokucwenga kuyadingeka kumabhawodi anamandla amakhulu ukukhulula i-hydrogen

Izidingo Zokusebenza

Ukusebenza Komhlangano

- Ama-friction coefficients: Kumelwe ahambisane namanani ashiwo (ngokuvamile u-μ=0.10-0.18 ekuxhumekeni okulayishwe kuqala)
- Ukunemba kokulayisha kuqala: Kufanele kuzuze ubuncane obungu-70% wamandla esivuno ezinqubweni ezilawulwayo zokuqinisa
- Umthamo wokuzungezisa amantongomane: Kufanele uvumele ukuqina okugcwele ngaphandle kokukhumula intambo

Izidingo zokuhambisana

- Ukuhlanganyela kochungechunge: Ubude bokuzibandakanya obuncane obungu-0.8d ukuze uthole amandla aphelele
- Ukusatshalaliswa komthwalo: Idizayini yamantongomane kufanele igweme ukugxilwa kwengcindezi okungalingani
- Ukumelana nezinga lokushisa: Kumelwe igcine izakhiwo ngaphakathi kwebanga lokushisa elithile (-20°C kuya +150°C ngokuvamile)

Ukuhlola Nokulawula Ikhwalithi

Ukuhlolwa Okuphoqelekile kweAmabhawudi

1. Ukuhlolwa kobukhulu: ukuqinisekiswa okungu-100% kobukhulu obubalulekile
2. Ukuhlolwa kwemishini: Ukuhlolwa kwesampula kwamandla aqinile, iphuzu lesivuno, nobude
3. Ukuhlolwa kokuqina: Ukuqina kwe-Rockwell noma i-Vickers kumasampuli
4. Ukuhlolwa komthelela: Ukuhlolwa kwe-Charpy V-notch kumadiamitha amakhulu
5. Ukuhlolwa kobuso: Ukuqina kwe-coating kanye nokuhlolwa kokunamathela

Ukuhlolwa Okuphoqelekile kweI-Hex Nuts

1. Ukuhlolwa komthwalo wobufakazi: Isampula lamantongomane angaphansi komthwalo oqinile
2. Ukuhlolwa kokuqina: Ukuqinisekisa ukufanisa amandla okufanele
3. Ukuhlolwa kwegeji yochungechunge: ukuqinisekiswa okungu-100% ngamageji e-GO/NOGO
4. Isheke le-Decarburization: Ubukhulu bokujula obungu-0.05mm buvunyelwe