How PCBs Prevent Warpage

I. Why the circuit board requirements are very smooth In an automated insertion line, if the printed board is not flat, it will result in inaccurate positioning. Components cannot be inserted into the board's holes and surface mounting pads, and they may even damage the automatic insertion ma

Details of book printing process (1)

Foreword Turn the ideas in your mind into words; turn the beauty in your eyes into pictures. Combine the words and pictures organically, arrange them in a beautiful layout on the computer, and send them to a professional printing company. The next proofing, filming, printing, binding, etc. work i

How to choose sandpaper base paper

The matrix, abrasives, and adhesives are called the three elements of coated abrasives, while the base paper matrix is ​​the most widely used and the most used material. The base paper is mainly used to produce water-resistant sandpaper, dry sandpaper, wood sandpaper, and paper-based

Pfizer Drug Packaging Design "Life" theme (8)

Glass Single Wall BottleGlass Single Wall Bottle is made of high-quality glass. It is crystal clear, healthy and environmentally friendly. You can directly see the whole picture of your favorite drinks. It has single wall. It sacrifices thermal insulation and improves portability. Holding it

Some experience of GC column configuration

In general, friends who use gas chromatographs for the first time do n’t know how to configure the columns properly. I always hope that the more columns, the better. I blindly purchase many columns or fixatives and supports. Experts recommend some experiences worth considering. Talking fro

Removable facial tissue box

【patent type】 utility model 【patent name】 removable facial tissue box 【applicant】 Guo Wenrui [inventor] Guo Wenrui 【main applicant address】 129, Yuehu Road, Yuemei Village, Houli Town, Taichung City, Taiwan 【Application Number】 20042

Characteristics of various inks

(1) Letterpress ink Relief inks include: printed books and periodicals inks, letterpress rotary books and periodicals inks, printed color inks, printed plastic inks, rubber letterpress plastic inks (that is, flexographic plastic inks), letterpress water-based inks, letterpress wheel transfer news