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Dacromet-Ti a bo Socket Head fila skru
2026-11-03
1. Ifihan
Socket ori fila skru, boṣewa ni ISO 4762 / DIN 912 - ni awọn boluti ti yiyan nibikibi ti o ga clamping èyà, iwapọ olori, ati kongẹ Iṣakoso iyipo wa papo. Nitoripe wọn jẹ iṣelọpọ ni igbagbogbo ni awọn kilasi ohun-ini 8.8, 10.9 ati ni pataki 12.9, awọn boluti wọnyi ṣiṣẹ ni ipin giga ti agbara ikore wọn, ati pe agbara kanna jẹ ki wọn jẹ alailagbara pataki si hydrogen embrittlement, wahala ipata wo inu, ati ipata initiated ni ori fillet ati hex iho Odi.
Dacromet bo - awọn ti kii-itanna sinkii-aluminiomu flake eto asọye nipa ISO 10683 ati ASTM F1136 - sọrọ ni pato awọn ailagbara wọnyi. Ninu fiimu tinrin 8-12 μm o pese 720 si awọn wakati 1,000 ti resistance sokiri iyọ si akọkọ ipata pupa (ASTM B117 NSS), ko ṣẹda eewu embrittlement hydrogen lakoko sisẹ, ati ṣetọju geometri iho hex to peye ati 6g o tẹle ifarada ti o iho ori fila skru dale lori.
2. Bolt Geometry ati Awọn ẹya apẹrẹ
skru ori socket jẹ boluti agbara ni kikun pẹlu ori iyipo ati awakọ iho hexagon inu:
- Silindrical oripelu a knurled dada ayipo; ori iwọn ila opin dk ≈ 1.5 × d - ni aijọju 30–40% kere ju boluti ori hexagon kan ti iwọn kanna, gbigba iwapọ, awọn ilana boluti ti o sunmọ;
- Ori-to-shank fillet, agbegbe rirẹ-pataki iyipada agbegbe nibiti ifọkansi wahala ti ga julọ;
- Okùn kikun tabi o tẹle ara(dan shank) aza; Awọn skru apa-apakan gbe ọkọ ofurufu irẹwẹsi sinu shank ti ko ni itọka fun agbara irẹrun ti o ga julọ;
- Awọn iyatọ ojuami: alapin (chamfered) ojuami bošewa; ojuami ajaati konu ojuami fun ipo ati awọn iṣẹ titiipa.
Ti a ṣe afiwe pẹlu awọn boluti hex, SHCS ṣe ipilẹṣẹ ti o ga julọ ṣaju fun itọka kanna ti o ṣeun si wiwakọ socket daradara, ati pe wọn ti fi sori ẹrọ pẹlu awọn bọtini hex, awọn fifẹ ti o ni agbara, tabi awọn awakọ hex ti o ni agbara - ṣiṣe wọn ni awọn boluti boṣewa ni awọn irinṣẹ ẹrọ, awọn abẹrẹ abẹrẹ, awọn ẹrọ hydraulic, awọn jigi ati awọn imuduro, ati awọn roboti.
3. Ipata Performance lafiwe
| Ndan lori kilasi 8.8-12.9 SHCS | Sisanra | Sokiri iyọ si ipata pupa (ASTM B117) | Ewu embrittlement hydrogen | Awọn akọsilẹ |
| Black oxide (dudu), epo | <1 μm | < 24 wakati | Ko si | Kosimetik nikan; epo w pa |
| Zinc fosifeti + epo | 3–5 μm | ≈ 48–72 wakati | Ko si | Ipari “dudu” ti o wọpọ, igbesi aye to lopin |
| Electro-galvanized Zn12, Cr (VI) -ọfẹ | 12 μm | ≈ 192 wakati | Ga (12.9 ko ṣe iṣeduro) | Socket ati awọn okun tinrin-palara |
| Sinkii-nickel alloy elekitiro-awo | 8–12 μm | ≈ 480-720 h | Déde | Iye owo ti o ga julọ; nilo ranse si-beki |
| Dacromet DAC 320 (Kilasi 2) | 8 μm | ≈ 720h | Fere ko si | Fadaka grẹy |
| Dacromet DAC 500 / dudu | 10-12 μm | ≈ 1,000 wakati | Fere ko si | Black pari ibaamu blackened jara |
6. Awọn ajohunše ati Aṣoju Ọja Ibiti
Awọn ajohunše bọtini: ISO 4762 / DIN 912 (awọn skru fila ori iho), ISO 898-1 (awọn ohun-ini ẹrọ), ISO 10683:2018 (awọn aṣọ-ideri zinc ti kii ṣe itanna eletiriki), ASTM F1136, ASTM B117, ISO 4042 (electrolating ati itọsọna HE), DIN 267-28 ati GB/T 70.1 / GB/T 5267.3.
| Paramita | Ibiti o wọpọ |
| Iwọn opin | M3 – M42 (No.4 – 1-1/2) |
| Gigun | 6 - 300 mm, okun kikun tabi o tẹle ara |
| Ohun ini kilasi | 8.8 / 10.9 / 12.9 |
| Ori ara | Standard (ISO 4762), kekere ori (DIN 6912), knurled ori |
| Ojuami | Alapin / aaye aja / aaye konu |
| Aso | DAC 320 / DAC 400 / DAC 500; fadaka grẹy tabi dudu; Cr (VI) -ọfẹ |
| Ifarada okun | 6g, awọn okun ti a bo laisi tun tẹ ni kia kia |
7. Awọn ohun elo ati Itọsọna Aṣayan
1.Match ti a bo si agbara: fun kilasi 10.9 ati 12.9 boluti, ta ku lori aisi-itanna zinc flake (Dacromet / Geomet) lati se imukuro hydrogen embrittlement;
2.Ropo dudu oxide ni oye: pato Dacromet dudu nigbati awọn alabara fẹ iwo dudu pẹlu aabo ipata gidi;
3.Verify ti a bo kilasinipasẹ awọn wakati NSS (DAC 320 ≈ 720 h; DAC 500 ≈ 1,000 h) ati beere ijabọ idanwo ti olupese ti a bo;
4.Confirm Cr (VI) - passivation ọfẹ(chromium trivalent) fun ibamu RoHS / ELV;
5.Check data edekoyede: gba awọn nut ifosiwewe ati olùsọdipúpọ-ti-fifọ Iroyin fun iyipo-dari ijọ;
6.Pari eto naa: lo awọn eso ti a bo, awọn ifọṣọ, ati awọn ifibọ ti o ni fọwọkan ti agbara ibaramu lati yago fun awọn eto imuduro ti o pọju.
8. Ipari
Dacromet-ti a bo socket head skru skru awọn darí Irisi ti awọn Lágbára gbogboogbo-idi boluti - iwapọ pipọ pipo drives, daradara hex socket agbara, ga preload agbara - pẹlu kan ti a bo eto atunse fun pato wọn ailagbara ojuami: ko si hydrogen embrittlement lori 12.9 irin, sinu iho , ati ki o gba agbara si awọn aaye ibi-afẹfẹ ati crevhest awọn aaye ibi-afẹfẹ ati ibi-afẹde ti o wa ni erupe ile. edekoyede iduroṣinṣin fun kongẹ ijọ. Ni pato ni deede, wọn fi awọn wakati 720-1,000 fun sokiri iyọ ni fiimu 8-12 μm, ati mu dudu, irisi matte ti awọn boluti dudu sinu iṣẹ ẹri ipata gidi.
