延安附近想过夜电话联系

Over 20 years of research and development, the company has produced more than 30 million high-quality customers
Focus on improving pass through rate for SMT Enterprises
lower production cost
0755-29749682
eighteen billion nine hundred and twenty-eight million four hundred and three thousand four hundred and thirty-five
Focus on improving pass through rate for SMT Enterprises
lower production cost
common problem
Your current position: home page / Lin Chuan information / common problem

How to use SMT steel mesh correctly

Source: Lin Chuan precision article author: Lin Chuan precision time: November 16, 2019 16:25 reading: 2328

SMT steel mesh is one of the important materials in PCBA production process, which can help solder paste to accurately Miss print PCB On the pad. Whether it can be used correctly will affect the amount and shape of solder paste on PCB pad. The following is Lin Chuan's summary of the correct use of SMT steel mesh.

 SMT500-375-6.jpg

I. keep the SMT steel mesh clean

1. Clean (wipe) the steel mesh before use to remove the dirt carried during transportation

2. After the steel mesh is used up, it should be cleaned in time, returned to the packing box and placed on the special storage rack

3. The steel mesh should be placed in the special shelf vertically, and the plates should be separated from each other (film can be pasted), and it is forbidden to stack and contact each other. The steel mesh waiting for cleaning shall not be placed at will to avoid accidental damage.

2、 Stir the solder paste evenly

Stir the solder paste evenly to avoid blocking the mesh. Mixing can be done by machine or by hand.

 Solder paste mixer

Take the steel net lightly

SMT steel mesh is generally delicate, so it should be handled with care. Hard objects or sharp knives should not be used to impact the steel mesh.

4. Adjust the printing pressure of scraper

1. Adjust the printing pressure to a good level: the pressure is good when the scraper can just scrape the solder paste (red glue) on the steel mesh

2. It is better to use pasteboard when printing

5、 Control printing speed

After the scraper stroke, if possible, stop for 2-3 seconds before demoulding, and the stripping speed should not be too fast.

Vi. record the usage times of SMT steel mesh

The service life of steel mesh shall be specified and effective methods shall be adopted for monitoring. The steel mesh beyond the service life shall be scrapped, and it is forbidden to use the steel mesh beyond the service life. (generally 100000 times).

The use times of SMT steel mesh can reach 100000 times. However, if the steel mesh is not used properly, the steel mesh will be easily damaged and the accuracy of steel mesh will be affected.

Do the above 6 points, your SMT steel mesh can not only print qualified products, but also increase its service life, save costs for you.

Last article: What is the thickness of SMT (PCB) steel mesh and how to choose it?
Next: Can you make steel mesh with PCB?
Related information
Hot products
Linchuan precision company SMT steel mesh Manufacturer
Main business: Laser steel mesh Nano steel mesh
Stepped steel mesh FG steel mesh
Service hotline: 0755-29749682/18928403435
Shenzhen Linchuan Precision Technology Co., Ltd
Hotline: 0755-29749682 18928403435
Email: xjx.smt@163.com
Customer service QQ 2549201 25487
Address: 2 / F, block C, Fengrun building, gushiu Huafeng Second Industrial Park, Xixiang, Bao'an District, Shenzhen

Guangming branch: No.16, shangshijia Road, tangxiawei third industrial zone, Guangming District, Shenzhen Yue ICP Bei No. 17051183


Scan more
menu
Telephone About us share
shrink

Online Service

  • customer service  Click here to send me a message
  • customer service  Click here to send me a message
  • Miss Zeng
    eighteen billion nine hundred and twenty-eight million four hundred and three thousand four hundred and thirty-five
  • Mr. Luo
    eighteen billion nine hundred and twenty-three million seven hundred and sixty-eight thousand six hundred and fifty-seven
  • Scan more