WC particle reinforced composite brazing filler metal used for brazing hard alloy and preparation method thereof
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A cemented carbide and particle-reinforced technology, applied in welding equipment, metal processing equipment, welding/cutting media/materials, etc., can solve the problems of hard alloy brazing joints such as easy wear, low working strength, and poor wettability , to achieve the effect of improving mechanical properties, ensuring performance stability, and improving uniformity
Active Publication Date: 2014-12-10
哈尔滨瀚霖科技开发有限公司
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[0004] The purpose of the present invention is to solve the technical problems of cemented carbide brazing joints that are easy to wear, low working strength, and poor wettability, and to provide a WC particle-reinforced composite solder for cemented carbide brazing and its preparation method
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specific Embodiment approach 1
[0023] Specific embodiment 1: The WC particle-reinforced composite solder used in this embodiment for cemented carbide brazing consists of 0.01 to 20 parts of Al, 0.01 to 15 parts of Ti, and 20 to 70 parts of Al Ni, 1-20 parts of W, 1-10 parts of Co, 1-10 parts of Cr, 0.1-10 parts of B, 0.1-10 parts of Fe, 0.1-10 parts of Si powder and WC particles, the amount of WC particles added is 35% to 55% of the total volume of Al, Ti, Ni, W, Co, Cr, B, Fe, and Si powders.
specific Embodiment approach 2
[0024] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the WC particle reinforced composite solder of cemented carbide brazing consists of 1 part of Al, 3 parts of Ti, 30 parts of Ni, 5 parts by weight. W, 8 parts of Co, 5 parts of Cr, 3 parts of B, 7 parts of Fe, 6 parts of Si powder and WC particles, the amount of WC particles added is Al, Ti, Ni, W, Co , Cr, B, Fe, and Si powder 45% of the total volume. . Others are the same as in the first embodiment.
specific Embodiment approach 3
[0025] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the addition of WC particles is 35% of the total volume of Al, Ti, Ni, W, Co, Cr, B, Fe, and Si powder ~55%. Others are the same as those in the first or second embodiment.
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Abstract
The invention provides WC particle reinforced composite brazing filler metal used for brazing hard alloy and a preparation method thereof, and relates to a brazing material and a preparation method thereof. The invention aims to solve the technical problems that a hard alloy brazed joint is easy to wear, relatively low in working strength and poor in wettability. The brazing filler metal provided by the invention is prepared from Al, Ti, Ni, W, Co, Cr, B, Fe, Si powder and WC particles. The preparation method comprises the following steps of weighing of raw materials, mechanical alloying of composite brazing filler metal, smelting and preparing of composite brazing filler metal foils. After going through a ball-milling process, a high-temperature smelting process and an ultrasonic vibrating process, the WC particles generate obvious refining behaviors, so that the dispersivity of WC particle reinforced phases in a brazing filler metal substrate is better, the uniformity of the whole brazing filler metal is improved, and therefore the performance stability of the brazing filler metal is ensured. The invention belongs to the field of brazing filler metal preparation.
Description
technical field [0001] The invention relates to a brazing material and a preparation method thereof. Background technique [0002] With the rapid development of modern industrial manufacturing and other industries, the requirements for machining and other fields are also getting higher and higher. Carbide cutting tools with high cutting speed, high processing efficiency, good wear resistance and long tool life are one of the most important components of cutting tool products. With the rapid development of China's manufacturing industry, there is a huge demand for cemented carbide tools. With the increase of cemented carbide varieties and sizes, especially in the manufacture of complex shapes, long-sized or large-sized cemented carbide tools, there are still Problems hinder the application of large-scale carbide cutting tools. In order to achieve a reliable connection between cemented carbide and cemented carbide, welding technology, especially brazing technology, has begun...
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