- Q:
How to clean the furnace chamber of a vertical solidification furnace? How often do you clean it?...
- The cleaning of the furnace chamber needs to be done once a month. The steps are: turn off the power and cool it to below 50 ℃, then remove the interlayer fixture; Wipe the inner wall of the furnace chamber with a soft cloth dipped in neutral cleaning agent (such as alcohol) to remove any adhesive residue; If there are stubborn stains, gently scrape them off with a specific scraper (made of plastic material, avoiding scratching the furnace liner); After cleaning, dry with a dry cloth and heat to 100 ℃ for 30 minutes to prevent moisture residue. If curing high volatility adhesive, it is necessary to clean it every two weeks to avoid stains affecting temperature uniformity. Guangdong Huaxin Semiconductor Technology Co., Ltd. can provide furnace cleaning tools and guidance....
- Q:
How to solve the problem of loud noise during the operation of a vertical solidification furnace?...
- The loud noise usually comes from three reasons: firstly, the accumulation of dust on the cooling fan, which causes abnormal noise during rotation and requires cleaning of the fan blades; The second is the noise of the vacuum pump. If it exceeds 75dB, the pump body bearings need to be checked. If they are worn, the bearings should be replaced or a soundproof cover should be installed; The third issue is that the furnace door is not tightly sealed, resulting in airflow noise during operation. It is necessary to adjust the tightness of the furnace door or replace the sealing ring. After solving the problem, the operating noise of the equipment should be ≤ 65dB, which meets the workshop noise standards. The vertical curing furnace of Guangdong Huaxin Semiconductor Technology Co., Ltd. adopts low-noise fans and vacuum pumps for better noise control....
- Q:
Do I need to preheat the silver paste before it solidifies in an anaerobic oven? Why?...
- It is recommended to preheat in advance, especially in low-temperature environments (<20 ℃). The key function is to raise the temperature of the silver paste to 25-35 ℃, reduce the temperature difference with the oven, and avoid the formation of bubbles due to rapid solvent evaporation during the initial curing stage; Preheating can reduce the viscosity of silver paste (such as from 10000cP to 8000cP), improve the flatness of the silver layer, and reduce curing defects caused by printing defects. Preheating should be carried out in an anaerobic environment (such as a small nitrogen protection box) to avoid oxidation of the silver paste; Preheating time is 10-15 minutes, and the temperature should not exceed 40 ℃ to prevent the solvent from evaporating prematurely. If the temperature in the workshop remains stable at 25-30 ℃, preheating can be omitted, but it is necessary to ensure that the printing and curing of the silver paste are completed within 1 hour after opening. Guangdong Huaxin Semiconductor Technology Co., Ltd. can provide a nitrogen protection box for silver paste preheatin...
