The difference between manual welding and SMT mounter

Bottleneck and restrictive factors of manual welding at present;

1. welder.

As we all know, on the one hand, welding requires welders to have skilled operating skills, rich practical experience and stable welding level; On the other hand, welding is a kind of work with poor working conditions, much smoke and dust, large thermal radiation and high risk. Hundreds of smt factories say that welding is different from other industrial processes. In manual welding, experienced welders can adjust the position, posture and walking speed of the welding torch according to the actual weld position observed by naked eyes to adapt to the changes of welding spots and welding tracks. So the welder's job is a job with certain technical content. For the factory, recruiting a skilled welder, based on the current workers' mentality and the factory's cost accounting for employees, is a positive and negative problem.

2. Welding process quality.

Hundreds of smt factories said that the manual welding process is limited by the technical level of welders. The welding skills and speed of welders are uneven, and the mood fluctuation is affected by certain factors, which affects the welding quality and output of products every day. This is the second bottleneck of manual welding.

3. Cost of welding accessories.

The skills and emotions of welding workers in smt factory are more or less unable to predict the auxiliary materials used in welding, so they go to the warehouse to collect as much as they use. The administrator can't quantify the daily usage of welding auxiliary materials, that is, the cost of welding auxiliary materials is a vague concept, and the cost accounting of production products is not quantified, which is an unclear project for customers and their own costs. This is the third bottleneck of manual welding.

4. Welding efficiency.

Affected by the welder's skills in smt factory, the efficiency of product welding every day cannot be quantified. How many products can the factory produce every day? The products are of good quality. Under what conditions is the so-called efficiency achieved? We understand that the purpose of welding is to obtain reliable solder joints! So? The welding efficiency we require should be based on the premise of ensuring the reliability of solder joints; In other words, we should avoid high rejection rate while welding efficiently.

SMT machine welding:

With the mass production of electronic products, manual soldering of lead solder joints on PCB with soldering iron tools can no longer meet the market demand, production efficiency and product quality. Therefore, semi-automatic/full-automatic batch welding equipment and full-automatic welding machines were gradually invented. Hundreds of smt factories say that automatic welding machine first appeared in Japan as the main production equipment of black and white/color TV sets. China has been introduced since 1980s, including submerged arc welding machine and single wave welding machine. Since the mid-1980 s, SMT technology of mixed mounting has developed rapidly, and double wave soldering machines have appeared. As far as welding technology is concerned, these are immersion welding, single wave peak welding and double wave peak welding. Both belong to flow brazing, which means that the molten and flowing liquid solder moves relative to the workpiece to be welded, making it wet to realize welding. Compared with manual welding technology, automatic flow welding technology obviously has the following advantages: saving electric energy, saving manpower, improving efficiency, reducing cost, improving appearance quality and reliability, overcoming human factors and completing work that cannot be completed by hand.

Automatic soldering machine with the use of various fixtures can effectively meet your different welding requirements for processing circuit boards and parts.