2024-02-22

The role of electronic cleaning agent

Cleaning agents are widely used in electronic manufacturing processes, and are often used to remove potential flux, solder paste, adhesive residue, and other common contaminants such as dust and debris in the production of PCBs. Cleaning can ensure that the components have a good surface resistance, to prevent leakage caused by the failure of the PCB board to fundamentally extend the service life of the product.

2022-12-22

The use of thermal conductive silicone grease

First, wipe with a clean cotton cloth or cotton ball. After wiping, dry the processor to ensure the surface is dry. Apply thermal paste is to first determine the size of the contact surface between the radiator base and the heat source, and apply the thermal paste with less amount.

2022-12-22

Morphological difference between conductive silver paste and conductive silver glue

Conductive silver paste: A viscous paste of a mechanical mixture of high-purity (99.9 percent) metallic silver particles, binders, solvents, and additives. The conductive silver paste generally contains a solvent.

2022-12-22

The difference between room temperature vulcanized silicone rubber and high temperature vulcanized silicone rubber

1, room temperature vulcanized silicone rubber is characterized by the production of room temperature without heating, in a certain molding pressure base can be cured. Room temperature vulcanized silicone rubber in the production of silicone rubber products is only need to add different additives can make the rubber material has different density, hardness, strength, fluidity and thixotropy and flame retardant, conductive, thermal conductivity, burn resistance and other special properties.

2022-12-09

Which components cannot be painted with three-proof paint?

At present, electronic manufacturers are popular to brush moisture-proof oil on the circuit board. The protection of the circuit board by the three-proof paint is warmly sought after by everyone, but it cannot blindly follow the trend, because some components on the circuit board cannot be brushed with the three-proof paint, otherwise it will cause the circuit board to be defective.

2022-12-09

Three anti paint (three anti glue) and potting glue which waterproof better?

The criteria for judging the waterproofness of the three-proof paint and potting glue are different, the manufacturer's formula is different, and the main characteristics are also different. Three-proof paint: the paint film is transparent and can meet the properties of moisture-proof, salt spray-proof, corrosion-proof, flame-retardant, temperature-resistant, insulation, etc. It is also called circuit board protective paint, waterproof glue, electronic glue, insulating oil, etc. It is mainly used on electronic circuit boards. In the electronic industry, the circuit board is the core component. Moisture-proof oil is the circuit board that protects the circuit board from moisture, moisture, moisture, moisture, moisture, dust, metal powder, metal powder, exposed in the tin oxide, metal powder, exposed in.

2022-12-09

Application Process of Spot Welding Sealant

Before welding, the stamping parts shall be coated on the veneer at the joint of the stamping parts with a mechanical gluing machine, a manual glue extrusion gun or a scraper, and then the two plates shall be folded and spot welded, and cured together with the baking processes such as electrophoretic paint and intermediate paint.

2022-12-09

What are the common problems when using three anti-paint?

During the use of the three-proof paint, due to technological problems, the following phenomena will occur: Bubbles: Large bubbles, small bubbles, or both large and small bubbles appear at the same time. Whiteness: the coating film contains water or other liquid, the color of the coating film is lighter than the original, and the coating film is white mist. Delamination: three anti-paint layered phenomenon, mainly in the components and group welding layer. Orange lines: the scene of orange lines in the three-proof paint is caused by forced drying. Cracks and scratches: cracks in the three-proof paint are mainly due to excessive thickness of the film, where the surface tension is too large such as the edges of the pins and components. Capillary phenomenon: small spacing tube leg connector during board design; Too harsh coating requirements; The viscosity of the three-proof paint is too low; The flow rate of the three-proof paint is too large; The surface tension between the substrate and the three-proof paint is inappropriate.

2022-12-09

What is three anti-paint?

Three-proof paint is a specially formulated coating used to protect circuit boards and related equipment from environmental erosion. Also called PCB electronic circuit board protection oil, moisture-proof paint, three-proof coating, waterproof glue, dust-proof paint, protective paint, three-proof glue, etc.

2022-12-09

Difference between acrylic resin and epoxy resin

The acrylic resin is a resin excellent in transparency and durability. According to these characteristics, from the lens and other daily necessities to molding materials, coatings, adhesives and other applications are very wide, so what is the difference between acrylic resin and epoxy resin?