When purchasing soluble ceramic fiber shaped parts, you can judge their quality from the following aspects:
1. Appearance inspection: The surface of high-quality soluble ceramic fiber shaped parts should be smooth and flat, without obvious cracks, missing corners, burrs and other defects. The fiber distribution should be uniform, without agglomeration or looseness, and the color should be uniform and consistent. If there is a significant difference in color, it may mean that the raw materials are unevenly mixed or there is a problem with the production process.
2. Dimensional accuracy: Use a measuring tool with appropriate accuracy to measure the key dimensions of the shaped parts to see if they meet the product specification requirements. Products with high dimensional accuracy indicate that the production process is strictly controlled and the mold is high in precision, which can better meet the installation and matching requirements in actual use.
3. Density detection: The density of soluble ceramic fiber shaped parts is closely related to its performance. Generally speaking, products with uniform density and within the standard density range of the product type have better quality. Too high density may lead to increased brittleness, while too low density may affect its strength and high temperature resistance. The density can be roughly judged by weighing combined with volume estimation.
4. Strength test: Gently press or bend the special-shaped parts by hand (without damaging the product) to feel their strength and toughness. Special-shaped parts of good quality should have certain compressive strength and flexibility, and should not be easy to break or deform. For some application scenarios with special strength requirements, suppliers can be asked to provide relevant strength test reports.
