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Pore-forming agent cleaning system and pore-forming agent cleaning method used in porous metal preparation process

A preparation process and porous metal technology, applied in the field of powder metallurgy, can solve the problems of increased time, labor cost, reduced removal effect of pore-forming agent, poor cleaning effect, etc., and achieve the effects of low cost, high efficiency, and improved solubility

Active Publication Date: 2022-03-18
SHANGI INST FOR ADVANCED MATERIALSNANJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When relying on the solvent to gradually infiltrate the porous metal and the pore-forming agent in the pores from the outside to the inside, due to the complexity of the internal pores of the porous metal, the effect of the solvent infiltrating the pore-forming agent into the core is weaker, and the cleaning effect is poor.
In addition, the solvent evaporates quickly after boiling, reaching the saturation of the solvent, and the removal effect of the pore-forming agent is further reduced. In order to prevent the rapid saturation of the solvent, it is necessary to continuously add or replace new solvents. In this way, various costs such as solvents, time, and manpower multiplied

Method used

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  • Pore-forming agent cleaning system and pore-forming agent cleaning method used in porous metal preparation process
  • Pore-forming agent cleaning system and pore-forming agent cleaning method used in porous metal preparation process
  • Pore-forming agent cleaning system and pore-forming agent cleaning method used in porous metal preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] 1. Fasten the first part, the second part and the third part through the threaded interface in turn, and install a high-temperature resistant sealing rubber gasket at the joint for sealing, and install a high-temperature resistant sealing rubber ring on the first part And on the outside of the second part, a porous nickel metal / inorganic salt complex is clamped on the sealing rubber ring, and the third part is connected to the outlet of the circulating pump through a high-temperature resistant water pipe, and is connected between the effusion tank and the second part. Appropriate amount of pure water is distributed and heated in the tank.

[0070] 2. Place the connected workpieces to be cleaned in the second tank. Install a high-frequency induction heating coil on the outside of the second tank and connect the cooling device. The water outlet of the second tank is connected to the effusion through a high-temperature resistant water pipe. The inlet of the tank.

[0071]...

Embodiment 2

[0077] 1. Fasten the first part, the second part and the third part through the threaded interface in turn, and install a high-temperature resistant sealing rubber gasket at the joint for sealing, and install a high-temperature resistant sealing rubber ring on the first part And on the outside of the second part, 16 porous nickel metal / inorganic salt complexes are clamped on the sealing rubber ring, the third part is connected to the outlet of the circulating pump through a high-temperature resistant water pipe, and is connected between the effusion tank and the second Appropriate amount of pure water is distributed and heated in the tank.

[0078]2. Place the connected workpieces to be cleaned in the second tank. Install a high-frequency induction heating coil on the outside of the second tank and connect the cooling device. The water outlet of the second tank is connected in parallel through a high-temperature resistant water pipe. And connect the water inlet of the effusion...

Embodiment 3

[0085] 1. Fasten the first part, the second part and the third part through the threaded interface in turn, and install a high-temperature resistant sealing rubber gasket at the joint for sealing, and install a high-temperature resistant sealing rubber ring on the first part And on the outside of the second part, 16 porous nickel metal / inorganic salt complexes are clamped on the sealing rubber ring, the third part is connected to the outlet of the circulating pump through a high-temperature resistant water pipe, and is connected between the effusion tank and the second Appropriate amount of pure water is distributed and heated in the tank.

[0086] 2. Place the connected workpieces to be cleaned in the second tank. Install a high-frequency induction heating coil on the outside of the second tank and connect the cooling device. The water outlet of the second tank is connected in parallel through a high-temperature resistant water pipe. And connect the water inlet of the effusio...

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Abstract

According to the pore-forming agent cleaning system and the pore-forming agent cleaning method used in the porous metal preparation process, the characteristic that a pore-forming agent is dissolved in a corresponding solvent is utilized, and the solvent is circulated to dissolve and remove the inorganic salt pore-forming agent in the porous metal material preparation process; and heating, ultrasonic vibration and pressurization are combined to accelerate dissolution of the inorganic salt pore-forming agent located in the metal, and the inorganic salt pore-forming agent and the low-concentration solvent in the liquid accumulation tank are replaced and diluted. The cleaning system can efficiently remove the inorganic salt pore-forming agent in the workpiece to be cleaned, the cleaning process is simple, the cost is low, and the cleaning system can be used for desalting treatment of all porous metals manufactured by adopting the inorganic salt-soluble pore-forming agent.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to a pore-forming agent cleaning system and a pore-forming agent cleaning method used in the preparation process of porous metals. Background technique [0002] Porous metal has the characteristics of filtration, adsorption, catalysis, excitation, shielding, etc., so that it can be used in many fields, such as sewage treatment filters, automobile exhaust treatment purifiers, high-density current porous cathodes, gas-liquid separators in rocket engines, signal jammer etc. [0003] Conventional loose packing sintering, vibration sintering, and pressing sintering do not use pore-forming agents, but the porosity obtained by them is low and the pore size distribution is not ideal. The more commonly used porous metal manufacturing method is the pore-forming agent method to manufacture porous metal. The high-temperature resistant inorganic salt that can be dissolved in water is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/11
CPCB22F3/1134B22F3/003Y02P10/25
Inventor 王红伟李永华郑庆松刘志琪王健陈小龙
Owner SHANGI INST FOR ADVANCED MATERIALSNANJING CO LTD