Device for preparing gradient material through laser cladding and preparation method thereof
A gradient material and laser cladding technology, applied in chemical instruments and methods, metal material coating process, transportation and packaging, etc., can solve the problems of reducing laser cladding efficiency and losing advantages, shorten mixing time and avoid cleaning Powder feeder, effect of improving cladding efficiency
Inactive Publication Date: 2022-01-07
安徽中科春谷激光产业技术研究院有限公司
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[0004] The mixing uniformity of the composite powder has a great influence on the gradient material prepared by laser cladding. Commonly used powder mixing devices such as ball mills, V-type mixers, double-cone mixers, etc. generally require more than 5 minutes for powder mixing. It is used in pre-preparation occasions, but if it is applied in real-time preparation occasions, a separate powder mixing process needs to be carried out in the powder feeder before cladding powder materials with different components, which will greatly reduce the efficiency of laser cladding, thus losing the comparison with the pre-preparation method. advantage over
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[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0031] Please refer to figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 with Image 6 in, figure 1 A structural schematic diagram of a preferred embodiment of the device for preparing gradient materials by laser cladding and its preparation method provided by the present invention; figure 2 for figure 1 The enlarged view of the structure at A is shown; image 3 for figure 1 The top view of the storage tank structure shown; Figure 4 for figure 2 Bottom view of the fixed ring structure shown; Figure 5 for figure 1 The schematic diagram of the internal structure of the jet mechanism shown; Image 6 for figure 1 The schematic diagram of the internal structure of the exhaust mechanism is shown. The device for preparing gradient materials by laser cladding and the preparation method thereof include: a storage mechanism 7; a feeding m...
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The invention provides a device for preparing a gradient material through laser cladding and a preparation method thereof. The device for preparing the gradient material through laser cladding comprises a storage mechanism; a blanking mechanism; a powder mixing mechanism which comprises ultrasonic vibration plates and a box body, wherein the ultrasonic vibration plates are symmetrically mounted on the side wall of the bottom end of the box body; a powder collecting mechanism which is rotationally connected with the interior of the top end of the box body; an exhaust mechanism which is fixed in the top end of the box body; a discharging pipe which is fixed at the bottom end of the box body; a closing mechanism; an air injection mechanism which comprises an air inlet pipe, a connecting rod, a fixing ball, nozzles and spraying holes, wherein the fixing ball is installed at the bottom end of the connecting rod, the nozzles with L-shaped side walls are obliquely installed on the side wall of the fixing ball at equal intervals, and the bottom ends of the nozzles are formed in the spraying holes. The device has the advantages of real-time powder mixing and good powder mixing effect.
Description
technical field [0001] The invention relates to the technical field of laser cladding, in particular to a device for preparing gradient materials by laser cladding and a preparation method thereof. Background technique [0002] The preparation of FGM coating by laser cladding is a new method developed by Jasim and Rawlings et al. in the 1990s. Using the method of laser cladding, a layer of AB mixed powder containing a small amount of B powder is firstly coated on the surface of the substrate C. Then, gradually increase the content of B in the AB mixed powder, and repeat the above process to obtain a gradient coating in which B gradually increases along the thickness direction. [0003] In order to realize the laser cladding molding of the gradient material, it is necessary to feed the material of the required composition simultaneously. For this reason, the following two methods are often used to obtain powder materials with different components: one is the pre-preparation...
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IPC IPC(8): B01F33/82B01F25/82B01F25/83B01F25/90B01F31/86B01F33/40B01F35/12B01F35/30B01F35/71B01F35/75C23C24/10
CPCC23C24/10
Inventor 王东生高雪松李荣彭丰肖猛
Owner 安徽中科春谷激光产业技术研究院有限公司