Method for manufacturing honeycomb ceramic sandwich plate on surface of steel plate in self-propagating manner with assistance of resistance spot welding
A technology of resistance spot welding and honeycomb ceramics, which is applied in the field of surface engineering, can solve problems such as poor high temperature performance, low bonding strength, and low service life, and achieve long service life, reduce raw material costs, and save energy.
Inactive Publication Date: 2015-04-29
江阴东大新材料研究院
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Problems solved by technology
[0002] The honeycomb ceramic sandwich steel plate has good impact resistance. The honeycomb ceramic sandwich steel plate prepared on the surface of the steel plate by the existing technology is mostly bonded by adhesive bonding, which has low bonding strength, poor high temperature performance and low service life.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0007] best practice
[0008] Take a honeycomb steel plate with a hole diameter of 8mm, a hole depth of 2mm, and a wall thickness of 0.5mm. The side walls of the honeycomb steel plate are densely covered with holes of ￠2mm. C powder and Ti powder with a particle size of 200 mesh are arranged at an atomic ratio of 1:1. Then add Ni powder with a total amount of C powder and Ti powder of 10~20%wt, mix well to make a mixture, and use a hydraulic press to press the mixture into a prefabricated block with a porosity of 25~35% in a honeycomb steel mold. After the prefabricated block is ejected from the extrusion die, put it into the honeycomb hole of the honeycomb steel plate, and then put it together on the surface of the steel plate substrate, preheat it together at 300°C±10°C, keep it warm for 20min±5min, and use AC resistance spot welding The honeycomb steel plate and the steel plate matrix are welded by machine spot welding, and the spot welding is equipped with a honeycomb elec...
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Abstract
The invention relates to a method for manufacturing a honeycomb ceramic sandwich plate on the surface of a steel plate in a self-propagating manner with assistance of resistance spot welding. The method comprises the following steps of taking out a honeycomb steel plate, wherein holes are densely distributed in a hole wall of the honeycomb steel plate, preparing C powder and Ti powder based on chemometry, adding Ni powder of 10-20wt% based on the total amount of the C powder and the Ti powder, and uniformly mixing to prepare a mixture, pressing the mixture in an extrusion mould by a hydraulic machine to form a pre-fabricated block with the porosity of 25-35%, ejecting the pre-fabricated block out of the extrusion mould, putting the pre-fabricated block into honeycomb holes of the honeycomb steel plate, and putting together on the surface of a steel plate substrate, pre-heating at 300+ / -10DEG C, carrying out thermal insulation for 20+ / -5 minutes, carrying out spot welding by an alternating current spot welding machine with assistance of honeycomb electrodes which are matched with the honeycomb holes of the honeycomb steel plate in size, and finally carrying out surface overlaying to form a layer of alloy steel on the surface by a surfacing welding machine with poles to obtain the honeycomb ceramic sandwich plate. According to the method for manufacturing the honeycomb ceramic sandwich plate on the surface of the steel plate in the self-propagating manner with assistance of the resistance spot welding, disclosed by the invention, a honeycomb coating, the steel plate substrate and surface metal are subjected to metallurgical bonding, and the bonding strength is high.
Description
technical field [0001] The invention relates to a method for preparing a honeycomb ceramic sandwich plate on the surface of a steel plate. It belongs to the technical field of surface engineering. Background technique [0002] The honeycomb ceramic sandwich steel plate has good impact resistance. The honeycomb ceramic sandwich steel plate prepared on the surface of the steel plate by the existing technology is mostly bonded by adhesive bonding, which has low bonding strength, poor high temperature performance and low service life. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages and provide a method for preparing honeycomb ceramic sandwich panels on the surface of steel plates with resistance spot welding assisted self-propagation and high bonding strength, good high temperature performance and long service life. [0004] The object of the present invention is achieved like this: a kind of resistance spot weldi...
Claims
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IPC IPC(8): B23K28/02
Inventor 陈威陈大智谭佃龙高一翔朱丹何亦栋高柏清刘阳
Owner 江阴东大新材料研究院