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Manufacturing method of glass breaking ball with convex structure on base body based on heat source cladding method

A manufacturing method and substrate technology, which can be used in additive manufacturing, glass production, coating, etc., can solve the problems of inability to complete remote and high-altitude glass breaking, complicated manufacturing processes, and complex processes, so as to shorten the throwing distance and facilitate rapid glass breaking. , The effect of simplifying the process

Pending Publication Date: 2022-08-09
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most glass-breaking tools are made of integral materials, and corresponding molds are required for mold opening and manufacturing. The cost is high, the process is relatively complicated, and it is impossible to complete remote and high-altitude glass breaking.
At present, the best remote glass-breaking tool is the glass-breaking ball proposed by Huang Yuzhong et al. in the patent "a throwing glass-breaking ball" (CN209933870U). -90% alumina ceramic structure, which is the main structure of glass-breaking balls at present, determines that its manufacturing process will inevitably lead to problems of high cost and complicated process
The problem of agglomeration of ultrafine powder and uneven dispersion of zirconia in the matrix has always been a difficult point in process control, so the manufacturing process is inevitably complicated; at the same time, the preparation of high-quality Al 2 o 3 / ZrO 2 Composite powder is the prerequisite for the preparation of ZTA ceramics with excellent performance, and high-quality raw materials will inevitably bring higher costs

Method used

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  • Manufacturing method of glass breaking ball with convex structure on base body based on heat source cladding method
  • Manufacturing method of glass breaking ball with convex structure on base body based on heat source cladding method
  • Manufacturing method of glass breaking ball with convex structure on base body based on heat source cladding method

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Effect test

Embodiment 1

[0035]The H13 steel ball is used as the matrix, and Ni60+WC alloy bumps are clad on its surface by plasma cladding. The specific method is as follows: ① Use WC powder with a purity higher than 99.9% and Ni60 powder as raw materials, and the powder particle size At 48-75μm, add 40% mass fraction of WC powder to Ni60 powder and mix it evenly, put it in a ball mill and grind for 3 hours; ② Dry the powder in a drying oven for 1.5 hours, and the drying temperature is 130 ℃; ③ For The surface of the substrate is cleaned, degreasing and rust removed, and then the substrate is placed in a drying furnace and kept at 80°C; ④ L5-400PC high-energy plasma arc powder surfacing equipment is used to carry out the cladding operation on the H13 steel substrate, and the surfacing current It is 180A, and a transition layer with an alloy layer thickness of about 1-3mm is obtained after cladding. ⑤Secondary cladding is performed on the surface of the transition layer, and the height of each hard pr...

Embodiment 2

[0038] Taking Q235 steel ball as the matrix, laser cladding is used to clad WC / (Al, Co, Cr, Fe, Ni, Nb high-entropy alloy) bumps on its surface. The specific method is as follows: ① The purity is higher than 99.5%, six kinds of high-entropy alloy powders Al, Co, Cr, Fe, Ni and Nb are prepared in the atomic ratio of 1:1:1:1:1:1; WC powder is added in the form of mass fraction of 25%. The high-entropy alloy Al, Co, Cr, Fe, Ni, Nb0.75 powders were put into a ball mill for grinding for 2.5 hours; ② the powders were dried in a drying furnace for 1.5 hours, and the drying temperature was 135 °C; ③ for the substrate The surface is cleaned, degreasing and rust removed, and then the substrate is placed in a drying furnace and kept at 85°C; ④ LDF4000-100 semiconductor laser is used to perform cladding operation on the 304 stainless steel substrate. The process parameters are: laser power 1100W, scanning The speed was 8 mm / s, the spot diameter was 4 mm, and the defocus amount was 22 mm. ...

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Abstract

A manufacturing method of a glass breaking ball with a base body provided with a protruding structure based on a heat source cladding method comprises the following steps that firstly, multiple kinds of alloy powder are selected, mixed according to a certain proportion and put into a ball mill to be subjected to ball milling; 2, drying the ball-milled powder in a drying furnace; thirdly, a base body is selected, and the base body is cleaned, deoiled and derusted and then placed in a drying furnace to be subjected to heat preservation; fourthly, coating is conducted through a powder presetting method, the powder in the second step is slightly compacted on the surface of the base body in the third step, it is guaranteed that the thicknesses of all the powder on the surface of the base body are consistent as much as possible, primary heat source cladding can be conducted, surface treatment is conducted after cladding, and therefore a transition layer is obtained on the surface of the base body; and fifthly, secondary local cladding is conducted on the surface of the transition layer according to the technological parameters in the fourth step, hard protrusions which are evenly distributed are formed on the surface of the transition layer through the secondary local cladding, and then surface treatment is conducted on the whole finished product. The method is simple in process, high in production efficiency and low in cost.

Description

technical field [0001] The invention belongs to the technical field of metal forming and manufacturing, and in particular relates to a method for manufacturing a broken glass ball with a convex structure on a base body based on a heat source cladding method. Background technique [0002] Tempered glass is widely used in the construction field and various types of vehicles because of its high hardness. At the same time, it becomes more difficult to break the tempered glass in the event of a safety accident. At present, most of the glass-breaking tools on the market are close-range glass-breaking tools such as safety hammers and spring escape hammers, and most of them are aimed at trapped people, which cannot meet the situation of high-altitude rapid rescue and other situations where close-contact rescue is not possible. In order to facilitate rescuers to quickly break glass for rescue, the glass-breaking ball has gradually entered the public's field of vision as a new generat...

Claims

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Application Information

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IPC IPC(8): B22F10/28B22F5/00C23C24/10B33Y10/00B33Y70/10B33Y40/10C22C32/00C22C19/05C22C30/00
CPCB22F10/28B22F5/00C23C24/103B33Y10/00B33Y70/10B33Y40/10C22C32/0052C22C19/05C22C30/00C22C27/02B22F2005/005Y02P40/57
Inventor 张国栋龚寅卿周怡成汪昌顺李孟钊李成林薛龙建杨兵
Owner WUHAN UNIV
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