Operation BWP Issue 2.pdf - 第23页

Issue 2, Nov 14 23 Operation Checkl ist Product name: Customer: Line: Shift(s) Material descrip tion: Stencil ser. No. Reviewers name (s): Date of Review: Print Material  Gloves and PPE used  Correct quantit y on stenc…

Issue 2, Nov 14

Objectives BWP 11 – Review screen print operation using checklist

Introduction

A regular review of the operation will help identify any problems and ensure that products

are set up following the correct guidelines and using best working practices.

Preparation

With guidance from your instructor familiarise yourself with the content of the operation

checklist on the next page.

Demonstration

Given a Dek printer with a product already set up follow the checklist and identify any

aspects of the operation which are not satisfactory.

Issue 2, Nov 14

Operation Checklist

Product name:

Customer:

Line:

Shift(s)

Material description:

Stencil ser. No.

Reviewers name(s):

Date of Review:

Print Material

 Gloves and PPE used

 Correct quantity on stencil

 Acclimatised

 Within use by date

Comments:

Stencil

 Matches product (check revisions)

 Clean and free from damage

 Fiducials in good condition

 Storage adequate

Comments:

Boards

 Clean and free from damage

 Flat

 Handled correctly (gloves used)

Comments:

Squeegees / ProFlow

 Correct type (squeegee / head + wiper)

 Correct length

 Paste deflectors / Skis fitted correctly

 Clean and free from damage

 Storage adequate

Comments:

Issue 2, Nov 14

Operation Checklist (Continued)

Tooling

 Correct type

 Set up correctly

 Stencil support used

 Clean and free from damage

 Storage adequate

Comments:

Pre-Production

 TCU / ECU switched on , cables

connected, temperature matches

process spec.

 USC vacuum unit switched on, cables

connected

 Board clamps in good condition

Comments:

During production

 Surface clean after print stroke

 Tramlines scooped up regularly

 Regular, small top ups of material

 USC pushes stencil upwards during clean

Comments:

Consumables

 Spare paper roll close to machine

 Solvent funnel close to machine

 Adequate quantity of acclimatised material

available

Comments:

Housekeeping

 Daily maintenance performed

 Cleaning materials available (gloves,

solvent, spatulas etc)

Comments:

Actions:

Owners:

Timescales: