Hlau Thread Txiav Screw

Cov ntsia hlau yog carburized thiab quenched. Ib qho nyuaj thiab hnav- cov txheej txheem carburized uas tsis muaj zog yog tsim rau ntawm qhov chaw. Qhov saum npoo hardness ncav cuag 450 ~ 650 HV (kwv yees li 48 ~ 56 HRC). Qhov no yog txaus kom yooj yim txiav cov pa roj carbon steel daim hlau. Siv ST3.5 ua piv txwv. Nws qhov tawv hardness tau ntsuas txog 580 HV. Nyob rau hauv qhov kev ntsuam xyuas ntawm rov screwing nyob rau hauv thiab tawm, tsis muaj teeb meem hnav ntawm cov xov txiav ntug. Qhov no guarantees zoo ib yam txiav tau thaum lub sij hawm sib dhos series.

Ntau yam kev txiav groove xws li D-hom, F- hom, thiab T- hom muaj. Lawv raug tsom rau ntawm cov substrate sib txawv xws li cov ntawv hlau, yas, thiab ntoo. Piv txwv li, hom D muaj 2 mus rau 3 longitudinal grooves. Thaum siv rau cov hlau phaj nrog lub thickness ntawm 0.8 mus rau 2.0 hli, qhov pom zoo hauv qab lub qhov taub yog 3.3 mus rau 3.4 hli (ST4.2). Cov ntaub ntawv ntsuam xyuas qhia tau hais tias screwing - hauv torque tuaj yeem txo los ntawm 30% siv hom raug. Nws tseem tuaj yeem tiv thaiv cov khoom yas los ntawm kev tawg vim kev ntxhov siab extrusion ntau dhau.

Ntau hom taub hau xws li lub taub hau lauj kaub, lub taub hau countersunk, thiab hexagonal flange muaj. Length range npog 4 mm txog 100 mm. Qhov no tuaj yeem hloov mus rau qhov sib txawv phaj thickness thiab countersunk taub hau xav tau. Piv txwv li, ST4.2 lauj kaub taub hau screws muaj nyob rau hauv ntev ntawm 8 hli mus rau 50 hli. Nws tuaj yeem koom nrog ntau yam kev sib txuas ntawm 1.0 hli steel daim hlau thiab 6 hli yas qhov chaw. Cov ntaub ntawv txheeb xyuas qhia tau tias kev hloov pauv hloov pauv ntawm cov lus qhia tshwj xeeb thiab qhov ntev tuaj yeem ua rau kev tsim qauv xaiv tau zoo los ntawm 40%. Nws kuj txo cov nqi kho kom haum ntxiv.

Cov txheej tuab ntawm lub taub hau ntsia hlau, ncej thiab xov groove ntug ncaj qha cuam tshuam rau kev tiv thaiv xeb. Siv X-ray fluorescence thickness gauge rau kev kuaj pom. Cov txheej thickness piv ntawm cov xov crest rau cov xov hauv qab ntawm siab - zoo screws tsis tsawg tshaj li 0.7. Qhov nruab nrab thickness yog 8 ~ 12 μm. Siv ST3.5 ua piv txwv. Txoj kab uas hla yog 9.5 μm. Cov hniav txheej txheej yog 7.2 μm. Qhov sib piv ntawm ob yog 0.76. Qhov piv ntawm cov khoom siv dav dav feem ntau qis dua 0.5. Qhov no ua rau pom cov npoo ntawm cov grooves. Hauv kev sim tshuaj ntsev, cov xeb liab tshwm sim thawj zaug ntawm qhov zawj. Nws tiv thaiv- xeb lub neej yog li luv luv los ntawm ib nrab.

Yuav siv tau nrog ua ntej -ntsuas sealing nplhaib

• Lub taub hau tuaj yeem ua ntej- nruab nrog nylon gaskets lossis O-rings. Lub sealing siab ncav cuag 0.3 MPa thiab qib waterproof yog IP67. Cov txheej txheem gluing cais raug tshem tawm, thiab ib zaug - lub sijhawm sib dhos yog txo los ntawm 2 vib nas this.

Xov pib optimization

• Lub taper ntawm qhov pib kawg ntawm cov xov yog tsim los ua 15℃~ 20 degree. Qhov kev vam meej ntawm qhov nkag qhov sib npaug yog nce mus rau 99.5%. Piv nrog rau txoj cai-lub kaum sab xis pib xaus, qhov jamming tus nqi raug txo los ntawm 70%, txo qis kev ua haujlwm.

Tsis txhob muaj kev pheej hmoo ntawm cov txiv ntoo poob

• Nutless tsim, tsis muaj teeb meem ntawm cov txiv ntseej vibration loosening lossis poob. Raws li nyob rau ntawm -site txheeb cais, tus nqi rov ua haujlwm vim cov txiv ntoo poob tau raug txo kom tsawg dua 0.1%. Kev ntseeg tau zoo heev.

Txo cov substrate deformation

• Lub radial extrusion quab yuam generated thaum lub sij hawm txiav yog tsuas yog 40% ntawm cov extrusion hom. Noj ST3.5 kev twb kev txuas mus rau 0.8 hli nyias phaj ua piv txwv, lub nraub qaum protrusion qhov siab yog txo los ntawm 0.3 hli mus rau 0.1 hli. Smooth tsos.