①The one-way valve of the mixer of the glue machine leaks, and the one-way valve is replaced.
②The mixer of the glue machine and the channel in the gun are partially blocked, and the mixer and pipeline are cleaned.
③There is dirt in the proportional pump of the glue dispenser, clean the proportional pump.
④The air pressure of the air compressor is insufficient and the air volume is unstable. Adjust the pressure.
2. The curing speed is too fast or too slow
①The ratio of components A and B is not adjusted properly, and the ratio of components A and B should be mixed according to 10:1 (volume ratio). There is a deviation between the ratio displayed on the scale of each glue machine and the actual glue output ratio. Some glue machines are adjusted to 15:1, but the actual output is only 10:1, so this point depends on the operator to judge, A barrel of component A glue (white glue) is just matched with a barrel of component B glue (black glue). If you use too much glue B, the glue dries quickly, adjust the scale to a larger number → (10, 11, 12, 13, 14, 15), if you use less glue B (the glue dries slowly, it is not black enough, the gray), adjust the scale to smaller numbers → (9, 8, 7).
②The temperature is higher in summer, and the curing speed of the glue will be faster. According to the situation, adjust the scale in the direction of the larger number → (10, 11, 12, 13, 14, 15), the temperature in winter is lower, and the curing of the glue The speed will be slower, according to the situation, reduce the scale a little → (9, 8, 7)
3. The pressure plate of the glue machine is glued.
① The pressure plate sealing ring is damaged and deformed, and it is aging and hard. Replace the new rubber ring.
②The lifting pressure is too high.
③The barrel is too big and not suitable. When purchasing, customers should first measure the size of their own gluer platen. Now there are three specifications of the machine platen on the market, 560mm, 565mm, 571mm, which can be pressed according to the customer’s machine. The size of the tray is provided in the corresponding drum.
4. The plastic disc cannot be pressed down
①The barrel is deformed and is not round. You can use a hammer to round the mouth of the barrel and press it down.
②The barrel is too small, or the sealing ring of the pressure plate is too large, you can apply a little white glue on the sealing ring, which can play a lubricating role and then press it down
5. Bubble problem (component A has bubbles or bubbles appear after mixing)
①The air is not completely exhausted during the glue pressing, so every time the glue is changed, the air exhaust valve must be opened, and then closed after the air is exhausted.
② Air is mixed in during the manual mixing process.
6. Reasons for the glue to turn gray and bluish after uneven mixing:
① The amount of component B added is insufficient, increase the amount of component B, and adjust the scale to the direction of small numbers → (9, 8, 7).
②Component B should be gently stirred with a stick when using. Because component B is shipped from the factory, a small layer of silicone oil will be placed on it to prevent air leakage when the lid is not tight, and component B will solidify and agglomerate.
③The nano calcium used in component A has high whiteness, so it turns gray and blue after mixing with black glue, but the performance of the glue will not be affected. Because the two-component glue is made into one white and one black, the purpose is to see if the mixing process is evenly mixed.
7. The installation of insulating glass, the problem of fogging after cold and heat exchange
① The two-component silicone adhesive is mainly used for secondary sealing and bonding structure, so the first seal must be sealed with butyl sealant, and the gusset is used. Butyl seals completely.
②In high temperature and high humidity seasons, molecular sieves with better quality must be used, which can completely absorb the residual moisture after the glass is sealed, so as to avoid future troubles. The whole operation time should not be too long.
Post time: Sep-22-2022