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What Is The Difference between Selective Wave Soldering and Ordinary Wave Soldering?
Wave soldering machine is the whole circuit board and tin-spraying surface contact depends on the surface tension of solder natural climb to complete welding. For high heat capacity and multilayer circuit board, wave soldering machine is difficult to achieve tin penetration requirements. Selectiv...Read more -
BGA Poor Welding Detection and Re-welding Problems
If the general X-ray machine virtual welding problem can not be checked out, can you use red ink and section to find the problem? But if heating or reflow oven welding, PCBA processing after the test and passed, then do red ink and slice test will be useful? If the customer asks to take the good ...Read more -
What Is Offline AOI Machine?
Introduction of Offline AOI Machine Offline AOI optical detection equipment is the general name of AOI after reflow oven and AOI after wave soldering machine. After SMD parts are mounted or soldered on the surface mount PCBA production line, the polarity test function of electrolytic capacitor ca...Read more -
Influence of Environment on Capacitor Performance
I. Ambient temperature 1. The high temperature The highest working environment temperature around the capacitor is very important for its application. The rise of temperature accelerates all chemical and electrochemical reactions, and the dielectric material is easy to age. The service life of th...Read more -
What Are The Characteristics of Wave Soldering Machine Process?
1. Wave Soldering Machine Technological process Dispensing → patch → curing → wave soldering 2. Process characteristics The size and filling of the solder joint depend on the design of the pad and the installation gap between the hole and the lead. The amount of heat applied to the PCB depends ma...Read more -
What Is Pick and Place Machine?
What is pick and place machine? Pick and place machine is the key and complex equipment in SMT production, which is used to attach components with high speed and high precision. Now the pick and place machine has developed from early low speed mechanical SMT machine to high speed optical centerin...Read more -
What Are Factors Affecting The Quality of Solder Paste Printing?
1. Solder paste printing machine scraper type: solder paste printing according to the characteristics of the solder paste or red glue to choose the appropriate scraper, most of the mainstream scraper is made of stainless steel. 2. Scraper Angle: the Angle of the scraper scraping tin paste, genera...Read more -
What Are The Causes of Solder Beading Produced During SMT Processing?
Sometimes there will be some poor processing phenomenon in the process of SMT machine, tin bead is one of them, to solve the problem, we must first know the cause of the problem. Solder beading is in the solder paste slump or in the process of pressing out of the pad occurs. During reflow oven so...Read more -
How to Use Manual Stencil Printer?
The operation process of manual solder paste printer mainly includes putting plate, positioning, printing, taking plate and cleaning steel mesh. 1. Secure the steel net Use the fixing device to fix the steel net on the printing machine. After the fixing, ensure that the steel net and PCB are in f...Read more -
Precautions for Using SMT Components
Environmental conditions for storage of surface assembly components: 1. Ambient temperature: storage temperature <40℃ 2. Production site temperature <30℃ 3. Ambient humidity : < RH60% 4. Environmental atmosphere: no toxic gases such as sulfur, chlorine and acid that affect the welding pe...Read more -
What Is The Impact of Incorrect PCBA Board Design?
1. The process side is designed on the short side. 2. Components installed near the gap may be damaged when the board is cut. 3. PCB board is made of TEFLON material with thickness of 0.8mm. The material is soft and easy to deform. 4. PCB adopts V-cut and long slot design process for transmission...Read more -
Electronics and Instrumentation RADEL 2021
NeoDen official RU distributor- LionTech will attend Electronics and Instrumentation RADEL Show. Booth Number: F1.7 Date: 21th-24th September 2021 City: Saint-Petersburg Welcome to have the first experience at the booth. Exhibition Sections Printed circuit boards: single-side PCB double-sided PC...Read more
