Precision CNC machining process advantages

In the field of industry, with the continuous development of technology, ordinary processing equipment has not been able to meet the market demand. Most of the machining manufacturers have added or replaced precision CNC machining equipment (CNC machine tools). 

Precision CNC machining has replaced ordinary machine tool processing and improved production and processing. Efficiency, stable production and processing quality. This is the main advantage of CNC machining of CNC precision CNC machining equipment.

Advantages: Precision CNC machining has high precision and high efficiency; precision CNC machining belongs to CNC machine tool processing equipment. The machining process is completely automated by coding commands, reducing labor operations. 

Because it belongs to the numerical control processing equipment, the production efficiency is many times that of ordinary machine tools, and the processing quality is relatively stable. When processing multiple pieces or batch parts, the production efficiency is more obvious.

vibratory polishing machine Reason for yellow foam during operation

  When the product is polished, the reason why the polishing agent will appear yellow is summarized as follows:

1. First of all, it is generally necessary to check whether the abrasive surface finish used in your vibratory polishing machine is OK. If the abrasive material is made of steel, you need to check if there is any indication of perforation. If this phenomenon is already present, use alkaline. The brightener should be self-grinding for about 1 hour, and the surface of the vibrating mill should be thoroughly cleaned until it is clean and free of debris, and be careful not to wash it with hard water for too long, otherwise it can only be counterproductive.

2. The time for vibrating and polishing work is not up to standard or the inside of the machine surface is not clean.

3. Check whether there is any quality problem with the polishing liquid, brightener or brightener used. Generally, if the product can use neutral or alkaline polishing agent, try to use such medicinal water. The benefit of this polishing agent is not to hurt. Hand and save on abrasives, because the loss is at least about 30% less than the acidic potion. But the stability of the potion is better than the acidity.

4. If the product is manually polished at the beginning, please confirm whether the surface oxide of the product has been polished before polishing the machine to avoid the abnormality of the gloss or the lack of gloss after the surface of the product is vibrated and polished.

PCB assembly process trends

In 2019, the development of electronic PCBA products in the direction of short, small, light, thin and multi-functional, led to the increasing integration of semiconductor integrated circuits, the smaller and smaller SMC, and the narrower pin spacing of SMD. The PCB assembly density of electronic products is getting higher and higher, and the assembly difficulty is getting bigger and bigger. For some products and some occasions, traditional through-hole component insertion process, wave soldering, and manual soldering have been unable to do anything. SMT chip processing has become the mainstream technology of electronic manufacturing.

The development trend of process technology is reflected in the following aspects.

At present, PCB assembly mainly uses printed solder paste reflow soldering process, and reflow soldering is still the mainstream process of SMT chip processing.

Wave soldering is used when mixing single panels and having more through-hole components.

In the mixed board with fewer through-hole components, the through-hole component reflow process is also being used more and more.

With the implementation of lead-free soldering, the wave soldering process is becoming more and more difficult, so selective wave soldering is becoming more and more widely used.

ACA, ACF and ESC technology applications.

Flip-chip FC, wafer-level CSP, WLP and other new packaging assembly technology.

The application of 3D stacked POP technology.

Embedded IC, wafer, and micro passive components in the polymer. Components such as R (resistance), C (capacitance), L (inductance), and filter are embedded in the ceramic substrate and in the PCB substrate to form a composite component or a composite printed board.

FPC has broken through the traditional concept of interconnected technology and has been widely used in various fields.

LED lighting is an important part of the energy-saving and environmental protection industry. It is widely used in display panels, light bulbs, lamps, street lamps, advertising and decorative light strings. It has also developed rapidly in recent years.

What are the advantages of wood grain paper?

     The wood grain paper is generally made of wood pulp kraft paper, and the strength is very large. Therefore, furniture, audio and other furniture office supplies can be decorated and trimmed with wood grain paper, general plastic packaging, plastic calendar and In fact, you can use wood grain paper for decorative painting. So what are the advantages of wood grain paper? Let me explain it briefly for you today.
 

      Wood grain paper is well decorated in the process of use, and the price of wood grain paper produced by wood grain paper manufacturers is generally low and the coverage is good. Because wood grain paper is non-toxic and tasteless, and it is wear-resistant and flame-retardant, wood grain paper also has good waterproof performance and plasticity.

How can I choose a reliable and durable rotary hot pot conveyor belt?

The use of rotary hot pot conveyor belt requires the selection of reliable, durable, low-radiation products, so that it can be used in hot pot restaurants.

 

Such products must have three certificates: CCC certification, effective certification, electronic barcode certificate, and thus can be determined. Guarantee products come to light Look at the shell is not in conformity with the T-shaped structure, the T-shaped structure is easy to be embedded into the integration with the desktop.

 

Third, look at the thickness of the upper shell, the thickness of the upper shell should exceed 25MM, otherwise the cooling holes will be blocked by the desktop and affect the heat dissipation. The thickness of the general desktop is between 20~25MM. Fourth, look at the high-performance panel of the hot pot conveyor. The panel must be a microcrystalline plate.

 

Especially in the heating area, there should be no scratches, no spots or trachoma, so this can cause the panel to generate physical stress at high temperatures. The stress tolerance is weak and can cause cracking.

 

Five look at the hot pot power line is not necessary to comply with the relevant regulations, the inner copper wire is as thick as possible, and there is CCC mark, generally 1200W below the standard 0.75 square line; 1800 ~ 2000W or more using 2.0 square line is more appropriate .