Shanghai Lan Qing Packaging Equipment Co;Ltd

Shanghai Lan Qing Packaging Equipment Co;Ltd

What is the standard for high-frequency welding?

2025 05/17

The welding standards for high-frequency machines mainly cover the scope of material application, equipment parameter configuration, operating specifications, and safety requirements, as follows:

 

1、 Scope of Material Application

 

High frequency machines are suitable for the following materials and scenarios:

 

Plastics: mainly PVC (plastics containing more than 30% PVC), as well as PET, APET, PP, etc.

Industrial products: automotive interiors (such as sun visors, embossed foot mats), medical equipment (such as blood transfusion bags, urinary catheterization bags), packaging (vacuum sealing, paper card welding), etc.

Bubble shell high-frequency machineInfusion bag high-frequency machine

Other materials: thermoplastic materials such as leather welding, tent canvas, industrial belts, etc.

2、 Equipment parameter standards

Electrical parameters

Working voltage: 380V, current range 0.2-0.8A.

High frequency oscillation frequency: The high-frequency electromagnetic field generated by the self-excited oscillator of the electron tube drives the polarized molecules to generate heat through friction.

Thermal parameters

Mold temperature: 70-110 ℃, recommended working temperature is 80-110 ℃.

Preheating time: Preheat for at least 5 minutes after starting up.Cardboard Welding High Frequency Welders

Air pressure parameters

Normal air pressure: 4-4.5kg, adjustable to a range of 4-7kg.

3、 Operating standards

Mold debugging

The mold needs to be installed and parallel parameters adjusted by professionals.

The welding time is set to 2-5 seconds, adjusted according to the mold size and material thickness.

Process flow

After opening the air pressure system, it is necessary to check the oil level in the oil cup (maintaining at least 2/3) and the status of the drain valve in the water cup.Sliding Table Welding Machine For Life Rings

Ensure stable electromagnetic field during operation to avoid uneven welding caused by poor contact.

4、 Safety and maintenance requirements

Operational safety

Do not start high-frequency welding directly without preheating.

Regularly check the insulation performance to prevent high-frequency leakage or electric shock risks.

Equipment maintenance

Clean the mold residue daily to prevent carbon buildup from affecting welding accuracy.

Regularly calibrate the temperature control system and pressure valve to ensure parameter stability.

5、 Quality Inspection Standards

Welding effect: There should be no bubbles or virtual welding at the interface, and the welding strength should meet the material characteristics.Efficient Material Processing

Appearance requirements: Embossing or trimming should be smooth and flat, without burrs or deformation.High Frequency Pvc Tensile Membrane Machine

 

 

Based on the above standards, the core of a high-frequency machine is to achieve efficient welding by precisely controlling the electromagnetic field strength, temperature, and pressure parameters, combined with specific material characteristics.