1. Basic functions of mold waterway water isolation sheet and water flow distribution principle
Mold waterway water isolation sheet plays a key role in mold cooling system. It can change the direction and distribution of water flow in the waterway, so as to achieve precise cooling of different parts of the mold. When water flows in the mold waterway, its distribution is affected by many factors, including pipe diameter, water pressure, the presence of water isolation sheet, etc. The difference in thickness of the water isolation sheet will directly interfere with the flow rate, flow direction and pressure change of the water flow when passing through it, and then affect the water flow distribution of the entire waterway. Generally speaking, a water isolation sheet of normal thickness can guide the water flow to circulate along a predetermined path to ensure that each area of the mold is cooled evenly or to meet specific requirements.
2. The influence of thicker water isolation sheet on water flow distribution
When a thicker mold waterway water isolation sheet is used, it will have a stronger blocking effect on the water flow because it occupies a larger space in the waterway. When the water flows through, the flow rate will be significantly reduced, forming a local high-pressure area near the water isolation sheet. This makes the water flow more inclined to bypass the water isolation sheet, change the original straight flow path, and spread to the surrounding area. For example, in some complex mold structures, if a thicker water isolation sheet is used locally, it may cause the water flow to gather in that area, while the water flow in the mold part away from that area is reduced, resulting in uneven cooling. Thicker water isolation sheets may also cause vortices or turbulence in the water flow, further disrupting the stable distribution of the water flow, affecting the cooling efficiency and quality of the mold as a whole, and may even cause mold deformation, product molding defects and other problems due to excessive or insufficient local cooling.
3. The influence of thinner water isolation sheets on water flow distribution
The thinner mold waterway water isolation sheet has a relatively weak blocking effect on water flow. The water flow can pass more smoothly, the flow rate changes less, and the change in the overall water flow path is not large. However, this may also lead to too uniform distribution of water flow and lack of targeted cooling regulation. In some cases where a specific mold area needs to be cooled quickly or strongly, a thinner water isolation sheet may not be able to effectively guide the water flow to the target area, resulting in poor cooling effect in that area. Moreover, thinner water isolation sheets may deform or displace under the impact of high-pressure water flow, which will affect their guiding role in water flow distribution and undermine the stability and reliability of the entire mold cooling system.
4. Strategies for dealing with thickness differences in mold design
In the mold design process, it is necessary to fully consider the impact of the thickness difference of mold waterway water isolation sheet on water flow distribution. First, accurately calculate and select water isolation sheets of appropriate thickness according to the structural characteristics of the mold, the molding requirements of the product and the cooling requirements. For areas that need to be cooled, specially designed variable thickness water isolation sheets can be used to increase the thickness in key areas to enhance the cooling effect, while maintaining appropriate thickness in other areas to ensure water flow uniformity. Secondly, use simulation software to simulate and analyze the water flow distribution under water isolation sheets of different thicknesses, predict possible problems in advance and make optimization adjustments. In addition, during the mold manufacturing and assembly process, the quality and installation accuracy of the water isolation sheet must be strictly controlled to ensure that it can stably play a role in regulating water flow distribution according to design requirements, thereby improving the performance of the mold cooling system and ensuring efficient and stable operation of the mold and high-quality production of products.
