Working Principle of Hot Melt Machine

The hot melt machine operates based on the principle of 'thermal conduction + pressure fusion' to achieve plastic welding or metal/plastic thermoplastic riveting. The core process is as follows: During the equipment preheating phase, the heating plate (or thermoplastic rivet head) is energized, and the internal heating tube converts electrical energy into thermal energy, raising the surface temperature to the melting range suitable for the welding material (such as PP, PE, ABS plastics, or some thermoplastic metal coatings); after the workpiece is precisely positioned, the mechanical transmission system (pneumatic, hydraulic, or servo-driven) pushes the heating plate into contact with the workpiece, and the heat from thermal conduction causes the welding surface of the workpiece to quickly melt; after reaching the preset melting time, the heating plate withdraws, and the mechanical system applies a holding pressure, allowing the molten material to cool and solidify under pressure, forming a molecularly bonded strong joint, thus completing the welding/riveting process.

Application Industries

(1) Consumer Electronics

• Application link: Assembly of mobile phone/computer casings (thermoplastic riveting screws), charging/earphone soldering (interface sealing), smart wearable devices (watchbands, sensor packaging).

• Value point: Precise control ensures product appearance (no overflow, deformation), efficient welding suitable for the fast pace of electronic industry production.

(2) Automotive Manufacturing

• Application link: Interior parts (dashboard buckles, door trim strips), engine-related plastic parts (intake manifold, oil pan), new energy battery packs (shell sealing, cell fixation).

• Value point: Achieves connection between different materials such as plastic and metal (e.g., aluminum-plastic welding of battery trays), ensuring the lightweighting and sealing requirements of automobiles.

(3) Medical Equipment

• Application link: Syringe/infusion set components (luer connector welding), hemodialyzers (membrane component packaging), medical plastic containers (reagent bottles, culture dish sealing).

• Value point: Meets medical grade cleanliness requirements (no dust, pollution), welding strength and sealing ensure the safety of medical equipment use.

(4) Packaging Industry

• Application link: Plastic packaging containers (cosmetic bottles, food cans) seal cap welding, logistics turnover boxes (heat-sealing reinforcement of splice seams), anti-counterfeiting packaging (one-time hot melt lock buckles).

• Value point: Rapid sealing ensures package integrity, adapting to the hygiene and efficiency demands of industries such as food and daily chemicals.

(5) Home and Building Materials

• Application link: Bathroom products (toilet seat assembly, showerhead connectors), plastic doors and windows (profile splicing, hardware riveting), furniture (plastic tables and chairs, storage cabinet assembly).

• Value point: Replaces glue and screws, simplifies the process while improving product waterproofness, structural strength, and reducing maintenance costs in the long run.