Thermal conductive adhesive solidification method

Abstract

The invention discloses a thermal conductive adhesive solidification method. The thermal conductive adhesive solidification method comprises the steps that the temperature of the environment where a product using a thermal conductive adhesive is located is increased to 180+ / -5 DEG C; then, the temperature of the environment where the product using the thermal conductive adhesive is located is keptat 180+ / -5 DEG C, and heat preservation treatment is conducted; the temperature of the environment where the product using the thermal conductive adhesive is located is increased to 250+ / -5 DEG C; the temperature of the environment where the product using the thermal conductive adhesive is located is increased to 800+ / -5 DEG C; the temperature of the environment where the product using the thermal conductive adhesive is located is kept at 800+ / -5 DEG C, and heat preservation treatment is conducted; and the temperature of the environment where the product using the thermal conductive adhesiveis located is lowered to 150+ / -5 DEG C. According to the thermal conductive adhesive solidification method, by adjusting and strictly controlling the temperature and time of each stage in the solidification process, the solidified thermal conductive adhesive is free of cracks, bubbles and other undesirable phenomena, and accordingly, the thermal conductivity, adhesive strength and adhesive force of the thermal conductive adhesive are ensured and improved.

Description

technical field [0001] The invention belongs to the technical field of heat-conducting materials, and in particular relates to a curing method of heat-conducting adhesive. Background technique [0002] The vehicle sensor is the input device of the computer system of the vehicle. It converts the information of various working conditions during the operation of the vehicle, such as vehicle speed, temperature of various media, engine operating conditions, etc., into electrical signals and sends them to the computer so that the engine is in the best state. working status. [0003] Thermally conductive adhesive is a functional product used to bond heat dissipation devices and other power consumption components. This thermally conductive adhesive usually has extremely strong adhesive strength, good adhesion and thermal conductivity, so it is widely used in The production of electronic components, such as the production of sensors for automobiles, uses thermally conductive adhesiv...

AI Technical Summary

Problems solved by technology

However, due to the defects in the existing curing technology of thermally conductive adhesive itself and the need to combine automotive sensors, therefore, in the production process of automotive sensors, when dispensing thermally conductive adhesive to automotive sensor elements, and using conventional thermally conductive adhesive Curing method When curing, it is found that cracks and bubbles appear in the part of the thermally conductive adhesive after curing, which reduces the thermal conductivity, bonding strength and adhesion of the thermally conductive adhesive in this part, and it is difficult to meet the production quality requirements of automotive sensors.

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