When selecting materials for mold frame manufacturing, the following factors may be considered:

1. The use environment of the mold: Different production conditions and use environment have different requirements for the corrosion resistance and high temperature resistance of the material. For example, if the mold needs to work under high temperature, then the selected material should have good heat resistance.

2. The usage environment of molds: Different production conditions and usage environments have different requirements for the corrosion resistance and high temperature resistance of materials. For example, if the mold needs to work at high temperatures, the selected material should have good heat resistance.

3. Precision requirements for molds: For molds that require high precision, materials that are easy to process and maintain dimensional stability should be selected. Steel plate formwork usually has better accuracy and stiffness, making it suitable for applications with high precision requirements.

4. Cost effectiveness: While meeting all technical requirements, it is also necessary to consider the cost-effectiveness of materials and choose materials with high cost-effectiveness to reduce production costs.

5. Heat treatment and surface strengthening: The selection of mold materials also includes heat treatment processes, which can significantly improve the hardness and wear resistance of the mold, thereby extending its service life.

6. Standardization and modularization: Considering the standardization and modular design of the mold frame, the selection of materials should strive to comply with industry standards for ease of maintenance and replacement.

7. Environmental protection requirements: In the context of increasing emphasis on environmental protection today, choosing environmentally friendly materials is also an important consideration factor.

8. Supply stability: When selecting materials, the stability of suppliers and the availability of materials should also be considered to avoid affecting production progress due to material supply issues.

9. Mechanical drawing requirements: In the mold design stage, it is necessary to determine the size and shape of the mold frame according to the requirements of mechanical drawing, which will also affect the selection of materials.

In summary, the selection of mold frame manufacturing materials is a process that comprehensively considers multiple factors, and needs to be balanced based on specific mold types, usage conditions, and economic benefits.