What are the advantages of single mill

Single-pass mill is a equipment that completes rolling deformation only through the roll once in the rolling process, and its advantages are mainly reflected in the following aspects:

1. Equipment and operation

Simple structure: the structure of single-pass rolling mill is relatively simple, usually composed of a pair of rolls and related transmission devices, support devices, etc., there is no complex multi-pass rolling structure and intermediate conveying devices. This makes the manufacturing, installation and maintenance costs of the equipment low, and the probability of failure is relatively small, and the maintenance is more convenient, which can effectively reduce the equipment investment and operating costs of enterprises.

Easy operation: Because there is only one rolling process, the operation process is relatively simple. It is easier for operators to master its operating methods and process parameters, which is convenient for new employees to quickly get started, reducing training costs and time. At the same time, the simple operation also helps to improve the stability and reliability of production, and reduce the incidence of product quality problems and production accidents caused by operational errors.

2. Production flexibility

Easy product switching: The switching process is relatively simple and fast when the single-pass mill produces products of different specifications and models. Only according to the new product requirements, adjust the roll spacing, speed and other parameters, you can carry out the rolling of new products, do not need to carry out complex roll change, adjust the rolling track and other operations like multi-pass mill, can effectively improve the flexibility of production and the response speed to market demand, suitable for small batch, multi-variety production mode.

Can meet the special rolling needs: for some special shapes, special materials or special performance requirements of the rolled parts, single-pass rolling mill can be designed by special roll shape and rolling process, in a rolling process to achieve specific deformation requirements, to meet the individual needs of customers. For example, for some parts with special surface texture or local deformation requirements, the single-pass mill can use a special roll to roll out the required shape at one time, avoiding the problems that may be caused by multiple passes rolling.

3. Product quality

Reduce work hardening: In the multi-pass rolling process, the rolled part has been deformed for many times, which will produce obvious work hardening phenomenon, which may lead to the toughness of the material and the difficulty of subsequent processing. The single-pass mill only carries out one rolling, the deformation of the rolled parts is relatively concentrated in one process, and the degree of work hardening is relatively low, which is conducive to maintaining the original properties of the material and improving the comprehensive quality of the product, especially for some products with high requirements for material toughness and subsequent processing performance, the advantage of the single-pass mill is more obvious.

Good surface quality: When rolling on a single pass mill, the contact time between the rolled piece and the roll is relatively short, and the rolling process is relatively simple, which is not easy to produce scratches, indentation and other defects that may occur on the surface of the rolled piece due to multiple passes rolling, which is conducive to improving the surface quality of the product. At the same time, through reasonable design of roll surface quality and rolling process parameters, the rolling surface can get better finish and precision, and meet the needs of some products with high surface quality requirements.

4. Production efficiency

Fast rolling speed: the single-pass mill has no intermediate waiting time and conveying time in the multi-pass rolling process, and can achieve a higher rolling speed if the equipment allows, thereby increasing the output per unit time. For some rolling production tasks requiring high production efficiency and relatively single product specifications, single-pass rolling mill can give full play to its advantages of high-speed rolling, quickly complete the rolling process and meet the production needs.

Short production cycle: Due to the simple production process of the single mill, the time from the billet into the mill to the finished product output is short, which can effectively shorten the production cycle, speed up the turnover of funds, and improve the economic benefits of enterprises. Especially in some urgent orders or production tasks with short delivery times, single-pass rolling mills can complete production and delivery in a short time by virtue of their rapid production capacity, enhancing the market competitiveness of enterprises.