PCB uterlik ferwurkjen ynlieding

PCB blanking, gat en foarm ferwurking kin die blanking metoade oannimme, foar ferwurkjen fan ienfâldige PCB as PCB mei net heul hege easken kin blanking metoade oannimme. Geskikt foar de produksje fan leech nivo en grutte kwantiteit PCB mei net heul hege eask en net heul hege foarmeasken, mei lege kosten.

Punch:

Production of large batch, the type and number of holes and complex shape of single-sided paper substrate and double-sided non-metallic hole epoxy glass cloth substrate, usually using one or several die punching.

Foarm ferwurking:

Printed board production volume large single panel and double panel shape, usually by die. Neffens de grutte fan it printe boerd kin it wurde ferdield yn boppeste en fallende die.

Gearstalde ferwurking:

In order to shorten the manufacturing cycle and improve productivity, composite die is used to process the holes and shapes of single panel at the same time.

To process printed board with mold, the key is the design and processing of mold, which requires professional technical knowledge. In addition, the installation and debugging of mold are also very important. At present, most of the mold of PCB manufacturers are processed by external factories.

Foarsoarchsmaatregelen foar malynstallaasje:

1. Neffens de die -ûntwerpberekkening fan blanking -krêft, de grutte fan ‘e die, de slutingshichte fan’ e keuze fan parse (ynklusyf type, tonnage).

2. Start the punch, check the clutch, brake, slider and other parts are normal, the operating mechanism is reliable, there must be no continuous impact phenomenon.

3. The pad iron under the die, generally 2 pieces, must be ground on the grinder at the same time, to ensure that the die is installed parallel and vertical. Pad iron placement of the leap position that does not prevent material falling at the same time as close to the mold center.

4. Prepare ferskate sets fan drukken plaat en T-kop drukken plaat screws foar oerienkommende gebrûk mei de mal. It foarste ein fan ‘e parseplaat moat de rjochte muorre fan’ e legere die net berikke. Emery cloth should be placed between the contact surfaces and the screws must be tightened.

5. By it ynstallearjen fan de mal, oandachtje oan ‘e skroeven en moeren op’ e legere die net de boppeste die oan te reitsjen (de boppeste die falt en slút).

6. As jo ​​de mal oanpasse, besykje dan hantlieding te brûken ynstee fan motor.

7. In order to improve the blanking performance of the substrate, the paper substrate should be heated. De temperatuer oant 70 ~ 90 ℃ is de bêste.

It gat en de foarm fan it printe boerd mei die blanking hawwe de folgjende kwaliteitsdefekten:

Raised around the hole or the copper foil warped or layered; There are cracks between holes; Hole position deviation or hole itself is not vertical; Burr; Rûge seksje; The printed board is warped into the bottom of the pot; Scrap jumping up; Waste jam.

De stappen foar ynspeksje en analyse binne as folgjend:

Check whether the punching force and rigidity of the punch press are enough; Die design is reasonable, rigid enough; Bolle, konkave die en gidskolom, krektens fan ferwurkjen fan gidshulzen wurdt berikt, ynstallaasje is konsintraal, fertikaal. Whether the fit clearance is even. The gap between convex and concave is too small or too large to produce quality defects, which is the most important problem in mold design, processing, debugging and use. Convex and concave die edges are not allowed to be rounded and chamfered. Punch is not allowed to have taper, especially when punching both normal and inverted cones are not allowed. Yn ‘e produksje moatte wy altyd oandacht jaan oan oft de râne fan konvekse en konkave die is droegen. De ôffiermûle is ridlik, lyts ferset. Push the material board, the material rod is reasonable, enough force. De dikte fan ‘e plaat en de binende krêft fan it substraat, de hoemannichte lijm, en de binende krêft fan koperfolie, waarmte en fochtigens en tiid binne ek faktoaren dy’t moatte wurde beskôge by de analyse fan blanking kwaliteit defekten.