Introduction to rod media of rod mill

Here is a brief introduction to the rod media of the rod mill.

Rod mill grinding media for the long metal rod, the rod diameter of the work medium, and more generally in the production of 50 ~ 120mm; frangible when worn too thin, too thick smashed grinding plate is easy. The length of the rod medium is 100~150mm shorter than that of the rod mill barrel. If it is too long, the mill and the end cover will be damaged by the impact. If it is too short, the mill has too much volume. In order to prevent the bending and breaking of the rod medium, the material and processing requirements are higher than the ball medium. The rod medium is generally rolled from low carbon steel (containing 0.6% to 0.8% of carbon) or containing manganese , chromium and molybdenum alloy steel, and is straightened at the heat treatment to enhance its hardness, strength and bending performance.

During the grinding process, the contact between the rod and the material to be ground is linear contact, so the material has a selective crushing effect. Therefore, the product has a uniform particle size and a light pulverization phenomenon. The rod mill should be regularly shut down for inspection, pick up the broken rods in time, and add new rods with the rod machine.

The working parameters of the rod medium are:

1. Porosity, when the rod medium is statically stacked, it is randomly arranged in two types: square and triangle;

2, density rate: the average density is higher than the ball medium;

3. Loose density;

4. Filling rate;

5, rod mill media size and size ratio generally need to be tested, but its ratio is not as strict as the ball medium.

Stamping Mould base

Stamping die frame: the perfect combination of manufacturing process and market development

With the rapid development of manufacturing industry, stamping die frame as an important processing tool has been widely used in automotive, aviation, electronics and other fields. This article will introduce the basic concept, design principles, production process, market status and development prospects of stamping die frame in detail to help readers better understand this field.

First, the basic concept of stamping die frame

Stamping die frame is a kind of die frame for stamping processing, which is mainly composed of upper die, lower die, die handle, guide post, guide sleeve and other parts. The role of the stamping die is to ensure the accuracy and stability of the mold installation, and to facilitate the stamping operation. According to the processing needs, the stamping die frame can be divided into simplex die frame and multi-station die frame.

Second, the design principle of stamping die frame

The design principle of stamping die frame mainly includes reasonable structure, accurate size and high precision. The structural design needs to be optimized according to product requirements and processing equipment to achieve a smooth and efficient stamping process. Dimensional accuracy is strictly required to ensure the stability and service life of the mold. High precision can improve product quality and production efficiency.

Third, the production process of stamping die frame

The production process of stamping die frame includes three links: processing, assembly and inspection. The processing link includes material selection, cutting, grinding and other steps, requiring strict control of errors. The assembly process needs to ensure the precision and stability of each part. The inspection link tests the overall performance of the mold frame to ensure that it meets the requirements of use.

Fourth, the market status of stamping die frame

At present, the market competition is fierce, and price and quality have become the key factors for enterprise competition. Some large mold enterprises have strong R & D capabilities and technical advantages, can provide high-end stamping die products, the price is relatively high. Some small and medium-sized enterprises rely on the low price strategy to provide middle and low-end products. In general, the quality of stamping products on the market is uneven.