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Icyiciro 8.8 Dacromet Hex Bolt –IN 933 | ISO 4014 | Byuzuye-Hexagon Bolt hamwe na Dacromet Kurwanya Ruswa
2026-07-06
Icyiciro cya 8.8 Dacromet DIN 933 hex bolt ikomatanya imbaraga ziciriritse-zo hagati hamwe ninganda ziyobora ruswa. Byakoreshejwe cyane mubikorwa byibyuma byo hanze, ingufu zumuyaga, ibikorwa remezo bya gari ya moshi, no kubaka ikiraro, iyi yihuta itanga imikorere yizewe mugihe gikenewe kubidukikije - nta ngaruka ya hydrogène ishobora guterwa nubundi buryo bwo gukoresha amashanyarazi.
Igice cya 1 - Gusobanukirwa Icyiciro 8.8
Ukurikije ISO 898-1, ibyiciro byumutungo byerekana bolt bigizwe nimibare ibiri yatandukanijwe ningingo icumi. Ku cyiciro cya 8.8:
Umubare wambere (8): Yerekana 1/100 cyimbaraga zizina muri MPa - ni ukuvuga, imbaraga zingana zingana = 800 MPa.
Umubare wa kabiri (8): Yerekana igipimo cyimbaraga ntoya yumusaruro nimbaraga ntoya ya ens 10 - ni ukuvuga, igipimo cy'umusaruro = 0,80, bivuze imbaraga nke z'umusaruro = 640 MPa.
Ibikoresho bya mashini
| Umutungo | Agaciro | Bisanzwe | Uburyo bwo Kwipimisha |
| Imbaraga zingana (min.) | 800 MPa | ISO 898-1 | Ikizamini cya Tensile |
| Imbaraga Zitanga (min.) | 640 MPa | ISO 898-1 | Ikizamini cya Tensile |
| Imyitozo Yumutwaro | 580 MPa | ISO 898-1 | Umutwaro uhamye |
| Ikigereranyo cy'umusaruro | 0.80 | ISO 898-1 | Kubara |
| Gukomera (Vickers) | 245–335 HV | ISO 6507 | Ikizamini cya Vickers |
| Gukomera (Rockwell) | 22-32 HRC | ISO 6508 | Ikizamini cya Rockwell |
| Kurambura ikiruhuko (min.) | 12% | ISO 898-1 | Ikizamini cya Tensile |
| Ingaruka Gukomera (min.) | 52 J @ -20 ° C. | ISO 898-1 | Ikizamini cya Charpy |
Icyiciro cya 8.8 gifatirwa mu byuma biciriritse (urugero, 45 # / SAE 1045) cyangwa ibyuma bito bito (urugero, 40Cr / SCM435) kandi bigashyirwa mu bikorwa no kuzimya ubushyuhe (Q&T) kugira ngo bigere ku mbaraga zisabwa. Ihuriro ryimbaraga zingana hamwe nigipimo cyumusaruro ugenzurwa bituma Grade 8.8 bolts yizewe cyane muburyo bwateganijwe mbere yububiko.
Imirima isanzwe yo gusaba
Kubaka ibyuma: Guhindura ibyubaka mumakadiri, imirishyo, trusses (BS EN 14399 / ASTM A325-bihwanye).
Ibikorwa Remezo: Ikiraro cyikiraro, gariyamoshi ya gari ya moshi, izamu ryumuhanda, guhuza kwaguka.
Ingufu zisubirwamo: Umuyaga wa turbine umunara uhuza, imiterere yizuba.
Imashini: Imashini rusange-yimashini ikora, ibikoresho byubuhinzi, gutunganya ibikoresho.
Imodoka (idakomeye): Kwiyongera kwa Chassis, umubiri-kuri-ikadiri, moteri ya moteri irashyigikira.
Igice cya 2 - DIN 933 Hex Bolt Igipimo
DIN 933. Nubwo ahanini byasimbuwe na ISO 4017 ku rwego mpuzamahanga, DIN 933 ikomeje kugaragara cyane mu gutanga amasoko mu Burayi no ku isi.
Ibyingenzi byingenzi bya DIN 933
Inyandiko yuzuye: Bolt ihujwe nuburebure bwa shank yose - kugwiza inshundura no kugabura imitwaro.
Umutwe wa mpande esheshatu: Ubugari busanzwe-buringaniye buringaniye butuma ikoreshwa hamwe na metero zisanzwe hamwe na sock wrenches.
Ikibanza gito: Ikibanza cyoroshye (kuri ISO 261) kugirango giterane byihuse no kurwanya kugabanuka munsi yinyeganyeza.
Kwihanganirana: Urwego rwibicuruzwa A (m ≤ 10d cyangwa ≤ 150 mm) nicyiciro cyibicuruzwa B (ubunini bunini) kuri ISO 4759-1.
DIN 933 Imbonerahamwe yerekana ibipimo
Ikimenyetso
DIN 933 Icyiciro cya 8.8 Bolts iranga umutwe hamwe nikimenyetso cyumutungo "8.8" hamwe nikirangantego cyakozwe. Iyo Dacromet ikozweho, ikimenyetso cyongeweho cyangwa tagi irashobora kwerekana ubuvuzi bwo hejuru.
Igice cya 3 - Kurinda ruswa ya Dacromet
Dacromet (nayo yanditse nka Dacrotised cyangwa DACROMET®) ni chromate idafite chromate, zinc-na-aluminium flake ishingiye kumazi yatwikiriwe n'amazi yatunganijwe mbere na Diamond Shamrock Chemicals. Itanga ibitambo byokwirinda ruswa kandi byahindutse uburyo bwo kuvura hejuru yicyiciro cya 8.8 cyakoreshejwe hanze no gutera-ibidukikije.
Uburyo Dacromet ikora
Ipitingi igizwe na zinc nyinshi zuzuzanya hamwe na aluminiyumu ihujwe hamwe na materix ya chromate idashingiye ku nganda, ikoreshwa no kuzunguruka no gukira hafi 300 ° C. Microstructure itondekanya ikora inzira igoramye kubintu byangirika, bitanga inzitizi nigitambo (galvanic):
Kurinda inzitizi: Ibice byinshi, byuzuye byuzuye bibuza ubushuhe hamwe na ion ya chloride kugera kubutaka bwibyuma.
Kurinda ibitambo (galvanic): Amashanyarazi ya Zinc ntabwo afite amashanyarazi make cyane kuruta ibyuma; byangirika cyane, birinda impande zicyuma zagaragaye hejuru yahantu haciwe.
Ingaruka yo kwikiza: Ibicuruzwa byangirika bya zinc igice kimwe gifunga inenge ntoya, byongerera ubuzima ubuzima.
Ibyingenzi byingenzi
| Umutungo | Dacromet | Bishyushye | Amashanyarazi ya Zinc | Fosifati |
| Kurwanya umunyu | ≥ 480 h (irashobora kugera 1000+ h) | 200-500 h | 96-120 h | <72 h |
| Ubunini | 6-10 µm | 50–100 µm | 5-15 µm | 5-15 µm |
| Amashanyarazi ya hydrogen | Nta na kimwe (guteka ntibisabwa) | Nta na kimwe | Ibyago byinshi | Ibyago bike |
| Kwihanganirana | Bitagize ingaruka (ikote rito) | Akenshi bigira ingaruka | Muri rusange ni byiza | Muri rusange ni byiza |
| RoHS / KUGERERANYA | Yego (hexavalent-Cr-free) | Yego | Biratandukanye | Yego |
| Porogaramu isanzwes | Imiterere yo hanze, umunara wumuyaga, ikiraro | Hanze hanze | Imbere / urumuri | Mu nzu |
Ikizamini cyo gutera umunyu kuri ISO 9227.Ubusanzwe bwa Dacromet: 6-10 µm. Ibisubizo birashobora gutandukana hamwe nuburyo bwihariye bwo gusaba.
Ibipimo ngenderwaho & Ibisobanuro
ISO 10683: Kudakoresha amashanyarazi ya zinc flake yambarwa.
DIN EN ISO 10683: Abanyaburayi bemeye ISO 10683.
ASTM F1136: Zinc / aluminium yangirika-ikingira ikingira.
VDA 235-104: Ubudage busanzwe bwimodoka kubutaka bwa zinc flake.
Ibyerekeye Ibyuma bya Fujirui - Abakora umwuga wo kwihuta no gukora ibicuruzwa
Fujirui Metal ikora kandi ikohereza ibicuruzwa bifata neza harimo Icyiciro cya 8.8 / 10.9 / 12.9 hex, DIN 933 yuzuye-imigozi yuzuye, DIN 931 igice-cy-igice-cyuma, ibyuma bya sitidiyo, hamwe na feri yihariye. Amahitamo yo kuvura hejuru arimo Dacromet, Ruspert, hot-dip galvanizing, na zinc electroplating. Ibicuruzwa byose bikozwe mubipimo bya ISO, DIN, na ASTM hamwe nimpamyabumenyi yuzuye y'ibizamini (MTC).
