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I-Dacromet coated hexagonal cylindrical head screw: Ibhawodi encane inquma impilo yemishini emikhulu, evimbela ukugqwala kanye nokungagqwali, futhi ayikho ingozi efihliwe yokugqama kwe-hydrogen.
2026-11-04
1. Isingeniso: Ibhawodi Elibamba Imishini Ndawonye
Hamba kunoma isiphi isitolo somshini, iseli irobhothi, noma i-wind-turbine nacelle futhi uzothola isibophelelo esifanayo: isikulufu esinekhanda eliyisilinda eline-recess ene-hexagonal, eqiniswe ngokhiye we-Allen. Lena yi- I-hexagon socket cap cap screw, ifane ne-DIN 912 kanye ne-ISO 4762. Ibhawodi elizenzakalelayo lesikhunta se-die, amathuluzi omshini, ama-hydraulic manifolds, nama-precision assemblies, ngenxa yokuthi igxilisa umthwalo omkhulu we-clamp emvilophini ehlangene futhi ingahlehliswa ibe yi-counterbore.
2. Incazelo Yomkhiqizo: I-Hexagon Socket Head Cap Screw
Ijiyomethri yale bhawodi ilungiselelwe ukulayishwa kuqala, hhayi ukubukeka okuguquguqukayo:
- Ikhanda le-cylindricalenobuso obunezinhlangothi obuyisicaba obusabalalisa umthwalo wokubopha endaweni eyindilinga egcwele.
- Isokhethi ye-hexagon yangaphakathi(i-metric kuwo wonke amafulethi ukusuka ku-2.5 mm ukuya ku-36 mm), idlulisa i-torque ebusweni obuyisithupha nge-cam-out encane.
- Intambo yemethrikhi egcwele ifomu(iphimbo elimaholoholo noma elicolekile ngokwe-ISO 261), igoqelwe esikhundleni sokusikwa ukuze kugeleze okusanhlamvu okuqhubekayo nempilo engcono yokukhathala.
- Amakilasi ezakhiwo 8.8, 10.9, kanye no-12.9, ehlanganisa amandla okuqina ukusuka ku-800 kuya ku-1,220 MPa.
| Uchungechunge | Ikhanda Dia. (dk) | Ukuphakama Kwekhanda (k) | I-Hex Socket (izi) | I-Tensile yekilasi 8.8 | I-Tensile yekilasi 12.9 | Ubude Obuvamile |
| M5 | 8.5 mm | 5.0 mm | 4 mm | 800 MPa | 1,220 MPa | 10-60 mm |
| M6 | 10.0 mm | 6.0 mm | 5 mm | 800 MPa | 1,220 MPa | 12–80 mm |
| M8 | 13.0 mm | 8.0 mm | 6 mm | 800 MPa | 1,220 MPa | 16-100 mm |
| M10 | 16.0 mm | 10.0 mm | 8 mm | 800 MPa | 1,220 MPa | 20-120 mm |
| M12 | 18.0 mm | 12.0 mm | 10 mm | 800 MPa | 1,220 MPa | 25-150 mm |
| M16 | 24.0 mm | 16.0 mm | 14 mm | 800 MPa | 1,220 MPa | 30-200 mm |
Isilinganiso sekhanda nentambo sibalulekile ekwakhiweni kokugqwala: ikhanda eliyisilinda elikhulu linikeza ukunamathela indawo ebanzi, enengcindezi ephansi ukuze ihlangane, kuyilapho isokhethi ejulile iyindawo ebaluleke kakhulu yokunamathela kuso sonke isikulufu - kulapho ukugqwala kuqala kuhlasela khona nalapho ifilimu elincanyana noma elingaphelele libangela ukuthi ibhawudi libanjwe.
3. Ukufakwa: I-torque, ukulayisha kuqala, nokusebenzisana kwe-Coating
Ibhawodi elimelana nokubola alisizi uma ilunga lixega. Ithebula 2 linikeza i-torque yokuhlanganisa yekilasi 8.8 kanye nezikulufu zekhanda lesokhethi yesokhethi engu-10.9 ezine-Dacromet coating (μ ≈ 0.14).
| Uchungechunge | I-Torque yekilasi 8.8 | Ikilasi 8.8 Ukulayisha kuqala | I-Torque ye-Class 10.9 | Ikilasi 10.9 Ukulayisha kuqala |
| M5 | 6.5 N·m | 4.0 kN | 9.0 N·m | 5.6 kN |
| M6 | 11.5 N·m | 5.7 kN | 16.0 N·m | 8.0 kN |
| M8 | 28.0 N·m | 10.4 kN | 39.0 N·m | 14.6 kN |
| M10 | 55.0 N·m | 16.5 kN | 78.0 N·m | 23.1 kN |
| M12 | 96.0 N·m | 24.0 kN | 135 N | 33.6 kN |
| M16 | 240 N·m | 45.0 kN | 335 N | 63.0 kN |
- Sebenzisa ukhiye olungile.Ukhiye we-Allen ogugile noma omncane ulimaza isokhethi futhi udalule insimbi engenalutho — indawo ngqo lapho ukugqwala kuqala khona.
- Hlonipha i-counterbore.Isihlalo sekhanda sihlala ebusweni balo obugcwele; i-counterbore ene-chamfered noma eyonakele inciphisa indawo yokuxhumana futhi ingaqhekeka ifilimu yokugqoka ngaphansi komthwalo.
- Ungahlanganisi amasistimu wokumbozaekuhlanganyeleni okufanayo ngaphandle kokuhlola kabusha i-torque. Isikulufu se-Dacromet enati elingenalutho sinokungqubuzana okuhlukile kunesikulufu esimboziwe sibe inadi elimboziwe.
- Faka kabusha i-torque ngemuva kokuxazululakuma-gaskets athambile noma izindlu zepulasitiki; ifilimu eyomile ayinyakazi, kodwa impahla eboshiwe ingase.
4. Isiphetho
Isikulufu se-hexagon socket head cap screw ehlanganiswe ne-Dacromet siyingxenye encane enquma impilo yesevisi yomhlangano omkhulu. Ikhanda layo eliyisilinda kanye ne-hexagon yangaphakathi iletha umthwalo we-clamp izimfuno zemishini yesimanje; i-zinc-aluminium flake yayo iletha ukusebenza okunqanda ukugqwala okudingwa ngaphandle, olwandle, kanye nesevisi yezokuthutha - ngaphandle kwe-hydrogen embrittlement, ngaphandle kokuthepha kabusha intambo, futhi ngaphandle kwesijeziso esibuhlungu sensimbi engagqwali. Cacisa isakhiwo ngendlela efanele, i-torque ngendlela efanele, futhi ibhawudi lizodlula upende emshinini eliwubambe ndawonye.
