Cov ntsiab lus hais txog screws
1. Qhov txawv ntawm cov ntsia hlau, txiv ntseej, txiv ntseej, bolts, screws, thiab studs: tus qauv hais tias tsis muaj cov ntsia hlau thiab txiv ntseej. Screws yog ib lub npe nrov, thiab cov uas muaj cov xov sab nraud tuaj yeem hu ua "screws". Cov duab ntawm cov txiv ntoo feem ntau yog hexagonal, thiab lub qhov hauv lub qhov yog ib qho xov hauv, uas yog siv los koom tes nrog cov ntsia liaj qhov rooj thiab zawm cov khoom muaj feem xyuam. Txiv ntseej yog ib lub npe nrov, thiab tus qauv yuav tsum hu ua "txiv ntseej".
Lub taub hau ntawm lub ntsia liaj qhov rooj feem ntau yog hexagonal, thiab lub shank muaj ib qho xov sab nraud. Cov ntsia hlau me me, lub taub hau muaj lub taub hau tiaj tus, lub taub hau ntoo khaub lig, thiab lwm yam, thiab lub shank muaj cov xov sab nraud. Studs yuav tsum tau hu ua "ob-kawg studs". Ob qhov kawg muaj cov xov sab nraud, thiab qhov nruab nrab feem ntau yog tus pas nrig polished. Qhov ntev kawg ntawm cov xov yog siv los txuas nrog lub qhov tob, thiab qhov kawg luv yog txuas nrog cov txiv ntseej.
2. Lus Askiv sawv cev: Screw / Bolt / Fastener (ntsia hlau / ntsia hlau) (bolt) (fastener)
3. Cov ntsiab lus ntawm cov xov: xov yog ib yam zoo li cov helical protrusions nyob rau sab nrauv lossis sab hauv ntawm cov khoom.
Xov xwm ua
1. Fastening thiab txuas muaj nuj nqi: haum rau feem ntau cov khoom ntsia hlau nyob rau theem no.
2. Cov nyhuv kis tau tus mob (txoj kev cuam tshuam): xws li micrometer siv los ntawm QC los xyuas qhov loj.
3. Sealing muaj nuj nqi: xws li kev sib txuas sealing ntawm cov kav dej.
Keeb kwm ntawm thread development
Tshuab xov: Thaum sib dhos, thawj zaug xyaum thiab coj mus rhaub lub rooj sib txoos, cov xov sab hauv yuav tsum tau tapping yog tib yam li cov xov sab nraud ntawm cov ntsia hlau, thiab sib sau ua ke nrog lub zog me me.
Self-tapping xov: Thaum sib dhos, tho qhov ntawm lub rooj sib txoos ua ntej, tsis tas tapping cov xov sab hauv, thiab siv lub zog loj dua rau kev sib dhos.
Self-drilling xov: Nws yog siv ncaj qha rau ntawm lub rooj sib txoos, thiab cov ntsia hlau yog drilled thiab tapped ib zaug.
Ntsia hlau txheej txheem
1. Tig (Tig)
Ua cov khoom rau hauv qhov xav tau los ntawm kev tshem tawm cov khoom
Qhov zoo: siab machining raug, tsis muaj pwm txwv
Disadvantages: siab ntau lawm nqi, qeeb ua ceev
2. Forging
Deform cov khoom los ntawm extruding nws kom ua tiav cov duab uas xav tau
Qhov zoo: ceev ceev ntau lawm, tus nqi qis, haum rau ntau lawm
Tsis txaus: Kev sib sau yog txwv los ntawm cov pwm, thiab pwm tus nqi rau cov khoom lag luam nyuaj yog siab
3. Lub taub hau txias
Nws yog cov txheej txheem ntawm extruding thiab deforming cov hlau xaim nrog kev pab cuam ntawm sab nraud quab yuam nyob rau hauv cov xwm txheej uas cov hlau hlau tsis rhuab. Cov txheej txheem txias taub hau tsuas yog ib hom txheej txheem forging.
Taw qhia rau qhov yooj yim configuration ntawm screws
Yuav kom nkag siab txog cov screws thiab bolts, koj yuav tsum xub paub lawv hom, yam ntxwv thiab kev ua haujlwm:
A: tsav system
B: taub
C: Kev sib txuas ntawm cov hniav
D: Ntshuam thiab tua department
Tshuab ntsia hlau
tus kheej tapping ntsia hlau
Daim duab peb sab hniav ntsia hlau
ntsia hlau taub hau hom
ntsia hlau profile
Ntsia hlau txheej txheem
General flow chart yog raws li nram no:
Disk unit txheej txheem
Hais txog tus thawj xaim pas nrig yuav los ntawm cov khoom siv raw khoom. Lub coil unit feem ntau suav nrog cov hauv qab no tsis:
A. Hom
B. Khoom npe
C. Specifications
D. Khoom siv
E. Rauv tooj lossis batch tooj
F. Ntau lossis hnyav.
Cov tshuaj lom neeg tseem ceeb ntawm carbon steel disk ntsiab yog: C, Mn, P, S, Si, Cu, Al, thiab cov ntsiab lus qis ntawm Cu thiab Al, zoo dua.
Kev kos duab
Txhawm rau kom ua tiav cov kab kab uas hla peb xav tau (xws li mus rau 3.5mm kos hlau).
Cold heading (heading) txheej txheem
Los ntawm kev sib cuam tshuam ntawm cov pwm, nws yog tsim. Ua ntej, cov hlau raug txiav tawm, thiab tom qab ntawd chim siab rau hauv cov ntsia hlau dawb los tsim lub taub hau, hla qhov zawj (los yog lwm lub taub hau zoo) xov dawb kab uas hla thiab pas nrig ntev, thiab cov ces kaum hauv qab lub taub hau, thiab lwm yam.
Kev piav qhia: Nws tuaj yeem tsim raws li qhov xav tau ntawm cov neeg siv khoom. Feem ntau siv lub taub hau yog P taub hau, B taub hau, F taub hau, T taub hau, thiab lwm yam. Feem ntau siv zawj hom muaj xws li hla zawj, slotted zawj, plum blossom zawj, hexagonal groove, thiab lwm yam.
Cov txheej txheem txhuam hniav
Lub taub hau txias yog twisted tawm ntawm cov xov, thiab cov hniav qauv yog tsim los ntawm kev sib cuam tshuam ntawm cov hniav txav thiab cov hniav ruaj khov.
duab
Hloov ua ntej thiab tom qab txhuam hniav
txhuam hniav tshuab
Rub board (template)
Kev kho cua sov txheej txheem
1. Lub hom phiaj: Ua kom cov ntsia hlau tau siab dua hardness thiab lub zog tom qab lub taub hau txias.
2. Muaj nuj nqi: Paub txog tus kheej-tapping xauv ntawm cov hlau, txhim kho cov khoom siv ntawm cov hlau, xws li torsion tsis kam, tensile kuj thiab hnav tsis kam.
3. Classification: A. Annealing: (700 degree x 4hr): elongated qauv - tsis tu ncua polygon.
txias ua hauj lwm qauv
B. Carburizing kev kho cua sov (ntxiv cov ntsiab lus ntawm cov hlau los txhim kho lawv cov tawv tawv, rau cov khoom siv hlau uas muaj cov ntsiab lus carbon tsawg).
C. quenching thiab tempering kub kev kho mob (tsis txhob ntxiv cov ntsiab lus rau cov hlau, hloov cov qauv sab hauv ntawm cov hlau los ntawm kev hloov qhov kub kom tau txais cov khoom zoo dua qub).
Cov txheej txheem electroplating
Qhov saum npoo ntawm cov khoom tom qab electroplating tuaj yeem nthuav tawm cov nyhuv xim uas yuav tsum tau thiab cov nyhuv anti-oxidation txheej.
