PCB steel stenciltuaj yeem muab faib ua hom hauv qab no raws li txheej txheem:

1. Solder paste stencil: Raws li lub npe qhia, nws yog siv los siv cov tshuaj nplaum. Carve qhov nyob rau hauv ib daim hlau uas sib haum rau cov ntaub qhwv ntawm PCB board. Tom qab ntawd siv cov tshuaj pleev xim rau cov ntawv luam tawm rau ntawm PCB board los ntawm stencil. Thaum luam ntawv solder paste, siv cov nplaum nplaum rau saum lub stencil, thiab muab lub rooj tsav xwm hauv qab ntawm stencil. Tom qab ntawd siv lub scraper txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhuam nws nws Txuas cov khoom siv SMD thiab rov ua dua ua ke, thiab cov khoom txuas txuas yog manually welded.

2. Liab yas steel stencil: Lub qhov yog qhib ntawm ob lub ncoo ntawm cov khoom raws li qhov loj thiab hom ntawm qhov. Siv dispensing (dispensing yog siv cov cua compressed los taw tes cov kua nplaum liab rau ntawm lub substrate los ntawm lub taub hau tshwj xeeb dispensing) los tso cov kua nplaum liab rau ntawm PCB board los ntawm cov hlau mesh. Tom qab ntawd muab cov khoom sib xyaw ua ke, thiab tom qab cov khoom txuas nrog rau PCB, ntsaws rau hauv cov khoom siv plug-in thiab mus dhau yoj soldering.

3. Dual-txheej txheem stencil: Thaum lub PCB board yuav tsum tau pleev xim rau nrog solder paste thiab liab kua nplaum, ces yuav tsum tau siv ib tug dual-process stencil. Dual txheej txheem steel mesh muaj ob lub steel mesh, ib tug zoo tib yam laser hlau mesh thiab ib tug ntaiv steel mesh. Yuav ua li cas txiav txim siab seb yuav siv tus ntaiv stencil rau solder paste lossis tus ntaiv stencil rau cov kua nplaum liab? Ua ntej nkag siab seb puas yuav siv cov tshuaj nplaum los yog kua nplaum liab ua ntej. Yog tias siv cov tshuaj txhuam hniav ua ntej, tom qab ntawd cov stencil muab tshuaj txhuam yuav ua rau lub laser stencil zoo tib yam, thiab cov kua nplaum liab yuav ua rau hauv tus ntaiv stencil. Yog tias koj siv cov kua nplaum liab ua ntej, ces cov kua nplaum liab yuav ua rau hauv ib qho laser stencil zoo tib yam, thiab cov stencil muab tshuaj txhuam yuav ua rau hauv tus ntaiv stencil.