Do you know what the materials of the load cell are?
If you are an operator of a load cell, you may know how it works, but it is not clear what its materials are. Today is our ocean engineer to explain the material knowledge of the load cell for everyone. Let's take a look.
The load cell is actually a kind of detection device consisting of one or more bodies that are deformed after being stressed. It is widely used in many fields such as ship, petroleum, industry, etc. What materials.
This material will be made of metal, generally there are three kinds: aluminum alloy, stainless steel and alloy steel. The main requirement of the elastomer is to be able to accurately transmit the force information and maintain the deformation consistency and complete resetting under the same force.
2. Strain gauge and resistive component materials
The composition of the resistance strain gauge is complex, and it is a composite product. The combination of the strain gauge substrate and the strained copper is ever-changing. According to its strain requirements, there are many such products. The general substrate is made of polymer film material, strain. Made of high-purity constantan. The Constantan on the substrate is optically treated to etch different resistance-deformed resistance wires. Therefore, the quality of the strain gauge is not only related to the material quality of the substrate and the purity of the composite metal, but also related to the composite process, etching technology and process, etching chemical materials and post-treatment processes and materials.
3. The material of the sealant
In the early stages, the load cell will use a special silicone rubber sealant series. Because it has the advantages of corrosion resistance, moisture resistance, aging resistance and insulation, it is relatively stable, so it is the first choice for sealant.
4. Material of the patch adhesive
The adhesive for strain gauge patch mainly uses two-component polymer epoxy adhesive. The properties of polymer chemical products are closely related to the physical and chemical indexes of each component, such as purity, molecular chain structure and size. , storage time, composition ratio, molecular modification, mixing method, mixing and curing time, curing temperature, curing time, additives and percentage.
Today, Xiaobian only introduces the common sense of these 4 points of materials, and other materials and small series will be introduced in detail next time. I want to know more about the small sensors of the load cell, remember to pay more attention to us. Dayang Sensing is a professional force sensor manufacturer . We have various force measuring systems for engineering equipment. Please feel free to call us.