Dacromet yokutidwa hexagonal cylindrical head screw: Bawuti yaying'ono imatsimikizira moyo wa zida zazikuluzikulu, anti-corrosion ndi zosagwira dzimbiri, ndipo palibe chowopsa chobisika cha hydrogen embrittlement.

2026-11-04

1. Mawu Oyamba: Bolt Imene Imagwirizira Makina Pamodzi

Yendani m'malo ogulitsira makina aliwonse, cell ya loboti, kapena turbine yamphepo yamphepo ndipo mupeza chomangira chomwechi: cylindrical-head screw yokhala ndi hexagonal recess, yomangika ndi kiyi ya Allen. Izi ndi hexagon socket head cap screw, yokhazikika ngati DIN 912 ndi ISO 4762. Ndilo bolt losasinthika la nkhungu zakufa, zida zamakina, ma hydraulic manifolds, ndi zophatikizira zolondola, chifukwa zimayika kwambiri zotsekera mu envelopu yaying'ono ndipo zimatha kubwezeretsedwanso ku counterbore.

2. Tanthauzo la Mankhwala: Hexagon Socket Head Cap Screw

Ma geometry a bawuti iyi amakometsedwa kuti alowetsedwe, osati kuti awonekere:

Mutu wa cylindricalyokhala ndi nkhope yosalala yomwe imagawira katundu wamba pamalo ozungulira.
Soketi ya hexagon yamkati(ma metric kudutsa-flats kuchokera ku 2.5 mm mpaka 36 mm), kutumiza torque kupyola pankhope zisanu ndi imodzi yokhala ndi cam out yochepa.
Ulusi wamtundu wathunthu(otsika kapena momveka bwino pa ISO 261), ogubuduzika m'malo modula kuti njere ziziyenda mosalekeza komanso kukhala ndi moyo wabwino wotopa.
Katundu makalasi 8.8, 10.9, ndi 12.9, kuphimba mphamvu zolimba kuchokera ku 800 mpaka 1,220 MPa.

Ulusi	Mutu Dia. (dk)	Kutalika Kwamutu (k)	Hex Socket (s)	Kalasi 8.8 Tensile	Kalasi 12.9 Tensile	Utali Wofanana
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

Chiyerekezo cha mutu ndi ulusi chimafunika pakupanga dzimbiri: mutu waukulu wozungulira umapangitsa kuti chophimbacho chikhale chotakasuka, chocheperako kuti chigwirizane, pomwe chopumira chakuya ndichomwe chimakhala chofunikira kwambiri pa screw yonse - ndipamene dzimbiri limayamba kuukira komanso pomwe filimu yopyapyala kapena yosakwanira imapangitsa kuti bolt igwire.

Dacromet yokutidwa hexagonal cylindrical mutu screw

3. Kuyika: Torque, Preload, ndi Coating Interaction

Bawuti yolimbana ndi dzimbiri ndiyopanda phindu ngati cholumikiziracho chimasuka. Table 2 imapereka torque ya kalasi 8.8 ndi 10.9 socket cap caps zokhala ndi zokutira za Dacromet (μ ≈ 0.14).

Ulusi	Kalasi 8.8 Torque	Kalasi 8.8 Lowetsani	Kalasi 10.9 Torque	Kalasi 10.9 Lowetsani
M5	6.5 nm	4.0 kn	9.0 nm	5.6 kn
M6	11.5 Nm	5.7 kn	16.0 Nm	8.0 kn
M8	28.0 Nm	10.4 kN	39.0 NM	14.6 kN
M10	55.0 NM	16.5 kN	78.0 nm	23.1 kN
M12	96.0 NM	24.0 kN	135 Nm	33.6 kN
M16	240 nm	45.0 kN	335 Nm	63.0 kN

Gwiritsani ntchito kiyi yolondola.Kiyi ya Allen yotha kapena yocheperako imawononga soketi ndikumawonetsa chitsulo chopanda kanthu - malo enieni omwe dzimbiri zimayambira.
Lemekezani counterbore.Mipando yamutu pa nkhope yake yodzaza; chopondera chopindika kapena chowonongeka chimachepetsa malo olumikizirana ndipo chimatha kusweka filimu yophimba pansi.
Osasakaniza zokutirapamgwirizano womwewo popanda kuyang'ananso torque. Dacromet screw mu nati wamba imakhala ndi mikangano yosiyana ndi yophimbidwa mu nati wokutidwa.
Bweretsaninso torque pambuyo pa kukhazikikapa gaskets zofewa kapena nyumba zapulasitiki; filimu youma si kukwawa, koma clamped zakuthupi mwina.

4. Mapeto

Dacromet-yokutidwa ndi hexagon socket head cap screw ndi gawo laling'ono lomwe limasankha moyo wautumiki wa msonkhano waukulu. Mutu wake wa cylindrical ndi hexagon yamkati imapereka chiwongolero cha makina amakono; zokutira zake za zinc-aluminiyamu zimapatsa mphamvu zoletsa dzimbiri zomwe zimafuna ntchito zapanja, zam'madzi, ndi zoyendera - popanda hydrogen embrittlement, popanda kugogodanso ulusi, komanso popanda chilango choopsa chachitsulo chosapanga dzimbiri. Tchulani chomangacho molondola, chiwongolereni molondola, ndipo bawutiyo idzatulutsa utoto pamakina omwe amagwirizanitsa.

Palibe. Kenako.

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