At present, China has become the largest fastener producer in the world, but it has always faced claims arising from quality problems. There is a big case in which the quality of finished fasteners causes quality problems due to the quality of steel. In part, China's fastener steel still needs to expand its production under the premise of meeting strict quality standards.
Fasteners, as the connectors for the mainframe and the components, together with the host, assume the basic performance of the main body and the basic functions of the components. In recent years, domestic fastener companies have been claimed by customers because of the quality of their products. In these incidents, they were largely due to the use of fastener steel.
At present, there are about 40,000 varieties and millions of fasteners of various sizes at home and abroad. Their usage and environment are even more varied. Many performance and quality indicators of fasteners are provided by the base metal.
This is a very large number of commodity fasteners that are generally required due to the application of advanced technologies, such as the application of high-speed cold heading and fully automatic continuous heat treatment production lines, as well as the hardness and chemical composition mass fraction of the bar for raw material cold heading. The uniformity of the raw material properties of the raw material has higher requirements.
The specifications of cold heading steel are relatively small and cannot meet the current domestic demand for fastener production and the demand for exports. In the production and market circulation of cold heading steel, a large number of steel grades in the JIS standard g3506, g3507, g4105, and US astam are also heavily borrowed."
Although China is currently a major producer of fasteners and the world’s largest producer of steel, the development of fastener steel has started late. In this regard, in addition to strengthening innovative R&D, domestic fastener steel manufacturers need to expand their production capacity under the premise of ensuring quality.
High Speed Wet Material Mixing Granulator
The high efficiency wet type mixing granulator used for wet granule preparation of tablets, capsules, granules, etc. It is widely used in such industries as medicine, food, chemical industry, etc.
Working principle:
Under the mixing action of the mixing paddle in the vessel, the powder materials are under the semi-flowing status and are mixed thoroughly. Then the bonds (Chinese patent medicine liquid extracts or other fluids) are injected to turn them into wet soft materials, which will be cut into even wet granules by the granule sizing paddle (granulating knife).
Features:
â—The machine adopts inverted taper granulating integral pot technology. The special mixing paddle and cutting knife structure ensures even finished products.
â—Mixing and granulating are completed in the closed pot to reduce dust pollution, conforming to GMP requirements.
â—With simple and safe operation, the mixing and granulating procedures are completed in one step.
â—It adopts human-machine interface PLC control, and the motor is subject to variable frequency speed adjustment. All process parameters can be stored automatically.
â—It is provided with the steam and water conversion function, so that cleaning is ensured.
Options:
â—Lifting machine feeding
â—Vacuum feeding
â—Material pot jacket design, used for heating and cooling
â—Equipped with wet type granule sizing machine or oscillating granulator
â—Bond liquid supply metering system
â—Data online printing system
â—WIP cleaning system
â—Explosion-proof function
High Speed Wet Material Mixing Granulator,Dry Material Mixing Granulator,High Speed Mixing Granulator,High Speed Dry Material Granulator
Jiangyin Jirui Machinery Manufacturing Co,LTD , https://www.jyjiruimachine.com