Method for manufacturing composition brake shoe with powder metallurgy inserts
A powder metallurgy, synthesizing brake shoe technology, applied in the direction of brake parts, can solve the problems of poor thermal conductivity, thermal peeling, affecting the use of brake shoes, etc., to achieve the effect of improving thermal conductivity, stabilizing friction performance, and reducing thermal damage
Active Publication Date: 2010-12-08
BEIJING RAILWAY STAR FORTUNE HIGH TECH
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in the prior art, the base material of the synthetic brake shoe has poor heat resistance, thermal fading, and more seriously, poor thermal conductivity, which will lead to changes in the structure of the wheel material, and in severe cases, thermal cracks will occur on the wheel tread , thermal cracking, thermal peeling and other phenomena, which affect the use of brake shoes
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] The embodiment of the present invention provides a method for manufacturing a synthetic brake shoe with a powder metallurgy insert. Aiming at the respective advantages and disadvantages of the powder metallurgy brake shoe and the synthetic brake shoe, the polymer composite friction material is effectively combined with the powder metallurgy insert, Integrating the respective advantages of powder metallurgy brake shoes and synthetic brake shoes, the comprehensive performance of high-friction synthetic brake shoes is improved. The synthetic brake shoe can significantly improve the thermal conductivity of the brake shoe, reduce the thermal degradation of the synthetic brake shoe, and ensure the stable friction performance of the synthetic brake shoe during braking; at the same time, it can effectively conduct the friction between the wheel tread and the brake shoe during the braking process. The frictional heat generated by the body during the braking process reduces the th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The embodiment of the invention provides a method for manufacturing a composition brake shoe with powder metallurgy inserts. The method comprises the following steps of: welding powder metallurgy inserts of which the hardness and the friction properties are matched with a high polymer composite friction material at two ends of steel backing; integrally pressing the high polymer composite friction material and the powder metallurgy inserts through cold press molding to form a friction surface of the composition brake shoe; and solidifying the cold press molded composition brake shoe and polishing the inner arc surface of the friction body to obtain the composition brake shoe with the powder metallurgy inserts. The invention can obviously improve the heat conducting properties of the composition brake shoe, reduce the heatfade of the composition brake shoe and guarantee the composition brake shoe to have stable friction properties during braking.
Description
technical field [0001] The invention relates to the field of brake shoes for trains, in particular to a method for manufacturing a synthetic brake shoe with powder metallurgy inserts. Background technique [0002] At present, the railway is an important infrastructure of the country, the main artery of the national economy and a popular means of transportation. Increased weight, increased speed and increased towing weight all place higher demands on braking devices and braking materials. Among them, the brake shoe, as the main component that provides friction and converts energy during train braking, is required to have high mechanical strength, good heat resistance and thermal conductivity, stable friction performance, low wear and reduced Abrasion and thermal damage to wheels. [0003] The brake shoe materials used in the prior art can be roughly classified into three types: cast iron brake shoes, synthetic brake shoes and powder metallurgy brake shoes. Powder metallurg...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F16D65/02
Inventor 邹怀森
Owner BEIJING RAILWAY STAR FORTUNE HIGH TECH