Then it must not affect the final assembly, for example, how far is it from the process hole or screw to be assembled? How much can the thickness of sealant not exceed?

The product car can see the position of sealant, but it should also pay attention to its beauty, such as the edge sealing of four doors and two covers. In addition to aesthetics, attention should also be paid to the thickness, width and corner cutting position of sealant, and whether there are too many bubbles on the glue that affect aesthetics.

Another key point is the temperature and time of baking sealant:

According to the normal process, the temperature is 170 5 and the time is 15 to 20 minutes.

The temperature and time of reworking sealant are different when encountering abnormality.

For example, the rework temperature of the paint truck remains unchanged for 25 minutes (try to stay in the oven insulation section for 25 minutes).

In fact, abnormal sealant needs to be reworked. The temperature and time are obtained by experiment and experience for reference only.

A work instruction is a written description of the sequence of work station operation steps. Different cars and different stations do different things, so the work instructions are different. In addition to the work instruction, there should also be WES (detailed explanation of some important steps) and intuitive pictures (let employees know the specific location of this step in detail \ to what extent this position needs to be OK, so that employees can have a more intuitive understanding).

Make workpieces according to the needs of different models. Generally speaking, suppliers are required to manufacture them or employees are required to design them. The workpiece must first meet its function, and secondly, it must be convenient and quick to operate, which will not pose a threat to the safety of employees and will not affect the painting of the body surface. Finally, there is the question of cost.

There are many kinds of glue guns, such as: weld sealant gun, tail groove sealant gun, hemming sealant gun, top groove sealant gun, blind edge sealant gun, PVC spray gun, etc. The pressure of the glue gun is also very important, neither too big nor too small, and the range of pressure depends on the position.

Welding sealant gun (muzzle diameter within 1mm) tail groove sealant gun (muzzle diameter within 0.5mm),

The requirements for muzzle of edge sealing gun, blind edge sealing gun and top groove sealing gun are the same. The width of the muzzle depends on the number of crimping plates, and the muzzle is wider than it.

The muzzle thickness of edge sealing glue gun and blind edge sealing glue gun should be 0.7mm, the extrusion glue thickness should be 1 to 1.5mm, the muzzle thickness of top slot sealing glue gun should be 1mm, and the extrusion glue thickness should be1.5 mm. ..

PVC spray gun is directly provided by the supplier.