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Process code for dry type transformer manufacturers

Date of issue: 2020/8/3 9:45:51 Source: http://perryswenson.com Click: fifty-one

  Dry type transformer is an important power equipment and electrical appliances. The dry-type transformer also needs a series of steps and procedures to complete. The production of dry-type transformer also needs certain procedures and processes. So what kind of process and production process do dry-type transformer manufacturers need? Let's have a detailed understanding of the process and production process of dry-type transformer with the editor of dry-type transformer manufacturer

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 Transformer manufacturer

1. Cutting line:

This process is to separate the coil of enameled wire with fixture, cut it into the specified length, pay attention to the storage of enameled wire, do not damage the enameled wire;

2. Loop

The operation content of this process is: according to the operation instruction, use the specified enameled wire to wind the specified number of turns on the specified magnetic ring.

Check that the magnetic ring should be used correctly;

Check the use of enameled wire correctly;

The number of turns should be correct;

The needle used for threading should be polished by special personnel to prevent the wire from breaking the enameled wire when threading, resulting in poor high voltage in the finished product;

Quality requirements of the ring:

The winding is evenly distributed, and sometimes a gap with a certain width should be left according to the requirements of the operation instruction. The uniformity of winding distribution can greatly improve the leakage inductance and distributed capacitance of the product;

The winding must not overlap. There are two disadvantages caused by overlapping winding: one is to increase the leakage inductance of the product; the other is that the whole outer diameter of the magnetic ring of the semi-finished product increases after the winding overlap, which is not conducive to the placement of the magnetic ring when assembling the finished product;

There is no discount for winding. There are at least three defects after winding discount: after winding discount, the enameled layer of enameled wire is damaged, and the product will form a hidden danger of poor pressure resistance; the discounted enameled wire is easy to break;

If the length of enameled wire is increased after discount, its DC resistance will be increased. For products with strict DC resistance requirements, its DCR will be restricted.

Take the wire tightly. If the winding is too loose, the leakage inductance of the product will increase;

This requirement is the same as that of no overlapping;

The length of the remaining lead wire shall meet the requirements of the operation instruction;

When it is required to distinguish the long and short lines from the remaining lines, they must be strictly distinguished or supplemented by different colors;

The magnetic ring should be stored in a small specified area to avoid damage and loss of the magnetic ring;

The semi-finished products after winding should be placed in order, and the leads should not be crimped.

3. Stranded wire (TAP)

4. Magnetic ring dipping

Due to the process requirements, some magnetic rings need to be dipped with insulating paint or silica gel in advance to protect the magnetic rings, so as to ensure some characteristics of the products.

5. Baking process

In the production process of network dry-type transformer, there are many processes related to product baking. In the baking process, the following points should be noted:

6. Winding assembly (each winding is wrapped with rubber shell corresponding to pin pin pin)

7. Tin front line

The purpose of the whole line is to make each lead flat to the pin pin pin, not to cross with the pin pin pin, so as to avoid the lead wire welding too long when the semi-finished product is welded.

8. Semi finished solder

This procedure determines the reliability of the product. Whether the product customers will have the defects of wire breakage and short circuit is usually caused by the poor operation of this process.

9. Whole line items

The main purpose of this process is to avoid the occurrence of short circuit;

10. Semi finished product test

The main purpose of semi-finished product testing is to pick out the defective products in advance and repair them. It is usually required that the setting parameters of semi-finished products should be more strict than those of finished products when testing, so as to ensure the parameters of finished products. For all testing posts, we usually care about whether the testing instruments and fixtures are reliable. If they are bad, then they are

The products tested did not achieve the purpose of screening.

11. Manual analysis of defects

In order to find out the key points of the defects and implement the improvement strategies, the seven common QC methods are: 1

12. Glue pouring

Confirm whether the black glue used meets the requirements: at present, we have high-temperature black glue and low-temperature black glue, and there are different models of low-temperature black glue. When using, we must check the relevant operation instructions and engineering changes or relevant business contact lists;

13. Printing

Use tools: silk screen, printing plate, etc

Materials used: printing oil, boiling water, washing water

Operation steps

1) according to the direction point on the rubber shell, put the product on the printing stand for printing (the dot on the rubber shell is one foot)

2) place the printed products in the uvmachine for 2 to 3 times

matters needing attention

1) the printing is clear, clear, continuous and dropping

2) the printing direction and model are consistent

3) no printing oil and dirt

14. Visual inspection

Use tool: magnifying glass

Materials used: finished products to be inspected

Operation steps:

Put the finished product to be inspected under a magnifying glass

matters needing attention

1. Check whether the size meets the requirements

2. Check whether the printing is qualified

3. Check whether the tin spot is qualified

4. Appearance inspection of other items

The above is the common dry-type transformer production process and various process flow for your reference, for the production process of dry-type transformer, if you have any other questions and problems about the process of dry-type transformer, please log in to our website for detailed understanding!


Related labels: Transformer manufacturer Process code for dry type transformer