banner
How to judge whether the epoxy glass sheet reached the specified temperature?
2021-07-17

Epoxy Glass fiber cloth sheet is made by heating and pressing with epoxy resin. It has high mechanical performance at medium temperature and stable electrical performance under high humidity. It is suitable for high-insulation structural parts for machinery, electrical appliances and electronics, with high mechanical and dielectric properties, good heat resistance and moisture resistance. Heat resistance grade F (155 degrees).

Specification thickness: 0.5~100mm

Under the condition of high temperature of 180℃, it will be deformed by heating, and it will generally not be heated together with other metals, which may cause the deformation of the metal sheet. So how should we judge whether it has reached the specified high temperature resistance? There are several phenomena.

Epoxy Glass fiber

1. Blushing

The color of epoxy board is mostly yellow, aqua and black. It can be said that the color change directly reflects the defense of the internal performance of the epoxy board. If during the heating test of the epoxy board, the temperature has not yet reached the specified temperature, it is a bad phenomenon that the epoxy board gradually turns white. It can be said that the quality of the product is problematic.

2. Stratification

We know that epoxy board is a composite material. It is a laminated structure, a layer of glass fiber cloth and a layer of resin. If the temperature is too high, the bonding force of the resin will be destroyed, leading to delamination. Therefore, when the epoxy board is heated to the specified temperature, if the epoxy board is delamination, it means that the epoxy board has not reached the specified temperature and does not meet the requirements.

3. Deformation

When the epoxy board is heated, deformation occurs when heated to a certain temperature: mainly including bending, shrinking, expansion, and warping. Once the temperature exceeds the range, the internal stress changes, and the shape of the epoxy board changes, and it cannot be restored to its original appearance.

4. Cracking phenomenon

Perform a heating test on the epoxy board. If you see a gap on the surface of the epoxy board when it is heated to the specified temperature, and the thickness gradually deepens, it will crack directly if the temperature is not lowered in time. This phenomenon can also fully explain that the epoxy board has not reached the specified temperature and is a substandard product.

If within the normal range, the above four conditions do not occur, it can basically be concluded that the epoxy board has reached the temperature requirement.

Today, when the current market information is so transparent, no matter what product you choose from G-10/FR4 glass epoxy sheet, you must choose a reliable manufacturer. When choosing a product, you should not only start from price, but also pay attention to quality and brand.

If you are also looking for a glass epoxy sheet supplier, please believe that JY Machinery is your best choice.



Contact Us:

Email: info@jycncmachining.com

Phone number: +0086 158 8091 3506

Website: www.jycncmachining.com

Skype: hubery-nie

Whatsapp: +86 15880913506

Register For Newsletter
GET LATEST COMPANY NEWS
Leave a message Welcome to JY Machinery
If you are interested in our services and want to know more details,please leave a message here,we will reply you as soon as we can.

  • Refresh the image
  • Home

    Products

    About

    Contact