Method for reducing difficulty of ultrasonic welding of engineering plastics

A technology of ultrasonic welding and engineering plastics, which is applied in the field of reducing the difficulty of ultrasonic welding of engineering plastics, and can solve problems such as long cycle time, unsatisfactory welding effect, and serious solder slag on the hot plate

Pending Publication Date: 2020-10-27
XIAMEN RUNNER IND CORP
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Problems solved by technology

[0002] At present, more and more engineering plastics are used in the injection molding industry. For the injection molding industry, the main parts welding methods are ultrasonic welding and hot plate welding. Relatively speaking, the hot plate solder slag is serious, there is a smoke layer, the cycle is long, The space occupation rate is high and it is not suitable for full automation. Ultrasonic welding has a short cycle, low space occupation rate, environmental protection and easier full

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  • Method for reducing difficulty of ultrasonic welding of engineering plastics
  • Method for reducing difficulty of ultrasonic welding of engineering plastics
  • Method for reducing difficulty of ultrasonic welding of engineering plastics

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Embodiment Construction

[0017] The technical solutions in the embodiments of the invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the invention. Obviously, the described embodiments are only some, not all, embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0018] A method for reducing the difficulty of ultrasonic welding of engineering plastics, comprising: before the engineering plastics A is ultrasonically welded, an auxiliary welding agent is coated on the welding surface A1 of the engineering plastics A, and the auxiliary welding agent can The surface is activated to reduce the resistance of ultrasonic welding of engineering plastics; wherein, the auxiliary welding agent includes an activator, such as lithium triethoxy aluminum hydr...

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Abstract

The invention discloses a method for reducing the difficulty of ultrasonic welding of engineering plastics. The method is characterized by comprising the following steps that S1, before ultrasonic welding of the engineering plastics, an auxiliary welding reagent is coated on the welding surface of the engineering plastics in advance, and the auxiliary welding reagent comprises an activating agent.According to the method, the welding surface of the engineering plastic is treated by selecting the auxiliary welding reagent, so that the surface of the engineering plastic is subjected to ultrasonic welding after being subjected to pre-dissolving and activating treatment, and then only low-power ultrasonic welding equipment is needed for wave generation welding, so that the welding difficulty can be reduced, the strength and function requirements of a welding assembly are guaranteed, the power requirement of welding equipment is lowered, cost is saved, and meanwhile unification and standardization of the equipment are promoted.

Description

technical field [0001] The invention relates to a method for reducing the difficulty of ultrasonic welding of engineering plastics. Background technique [0002] At present, more and more engineering plastics are used in the injection molding industry. For the injection molding industry, the main parts welding methods are ultrasonic welding and hot plate welding. Relatively speaking, the hot plate solder slag is serious, there is a smoke layer, the cycle is long, The space occupation rate is high and it is not suitable for full automation. Ultrasonic welding has a short cycle, low space occupation rate, environmental protection and easier full automation. However, due to different materials, the choice of welding methods is greatly restricted, such as polyamide (PA), PA material has a high melting temperature and strong shock absorption. Therefore, compared with the hot plate welding process, its ultrasonic welding has extremely high requirements for welding equipment, and t...

Claims

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Application Information

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IPC IPC(8): B29C65/08B29C65/78
CPCB29C65/08B29C65/782
Inventor 戴荣昊朱江南黄贤明
Owner XIAMEN RUNNER IND CORP
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