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A device and method for high-throughput research and preparation of iron-based powder metallurgy products

An iron-based powder metallurgy, high-throughput technology, applied in transportation and packaging, metal processing equipment, etc., can solve the problems of many variables in the performance of iron-based powder metallurgy products, complex influencing factors, and large intervals between test parameters. The effect of improving development efficiency, simplifying the process flow, and increasing the number of tests

Active Publication Date: 2019-10-18
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that there are many variables affecting the performance of iron-based powder metallurgy products, and the influencing factors are complex
Traditional iron-based powder metallurgy products usually adopt single-mixing and single-pressing material preparation methods, which lead to long research cycles, low efficiency, limited number of variables that can be optimized, large variable intervals of test parameters, and inaccurate experimental optimization data.

Method used

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  • A device and method for high-throughput research and preparation of iron-based powder metallurgy products
  • A device and method for high-throughput research and preparation of iron-based powder metallurgy products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: Iron-based powder metallurgy alloy (Fe-(0-0.1%) Mn-(0-1%) Ni-(0-0.8%) Mo-(0-1%) Cr-(0- 0.5%) C) optimization of components

[0025]Using the same binder formula: ethylene bis stearamide 30%, microcrystalline wax 20%, palmitic acid 10%, stearic acid 20%, paraffin wax 15%, stearamide 1.5%, elaidic acid 2%, Heptadecanoic acid 1%, metallocene salt 0.4%, antioxidant stabilizer 0.1%. The weight percent content of the binder is 0.3%. Atomize pure iron powder (-5 Pa, the rotary speed of the conical mixer is 150 rpm, the bottom of the conical mixer is equipped with high-speed rotating blades, and the rotating speed of the blades is 500 rpm. The bonded iron-based powder obtained after mixing evenly enters different detection channels for powder performance and compaction performance analysis. The powder dust collection unit and the powder fluidity and bulk density collection unit are used to analyze the physical properties of the powder. The powder entering the m...

Embodiment 2

[0026] Embodiment 2: Iron-based powder metallurgical alloy (Fe-(0-0.1%) Mn-(0-1%) Ni-(0-0.8%) Mo-(0-1%) Cr-(0- 0.5%) C) optimization of components

[0027] Using the same binder formula: ethylene bis stearamide 30%, microcrystalline wax 20%, palmitic acid 10%, stearic acid 20%, paraffin wax 15%, stearamide 1.5%, elaidic acid 2%, 1% of heptadecanoic acid, 0.4% of metallocene salt, 0.1% of antioxidant stabilizer, and 0.3% by weight of binder. Atomize pure iron powder (-5 Pa, the rotary speed of the conical mixer is 100 rpm, the bottom of the conical mixer is equipped with high-speed rotating blades, and the rotating speed of the blades is 400 rpm. The bonded iron-based powder obtained after mixing evenly enters different detection channels for powder performance and compaction performance analysis. The powder dust collection unit and the powder fluidity and bulk density collection unit are used to analyze the physical properties of the powder. The powder entering the middle ma...

Embodiment 3

[0028] Embodiment 3: binding agent (ethylene bis stearamide 20%~50%, microcrystalline wax 15%~25%, palmitic acid 5%~20%, stearic acid 5%~20%, paraffin 5%~ 10%, stearamide 0.5%~2%, elaidic acid 0.1%~2%, heptadecanoic acid 0.1%~1%, metallocene salt 0.2%~1%, add a small amount of antioxidant 1680.1%~2% ) formulation optimization

[0029] Use the same iron-based alloy composition: Fe-0.1Mn-1Ni-0.8Mo-1Cr-0.5C to water atomize pure iron powder (-5 Pa, the rotary speed of the conical mixer is 120 rpm, the bottom of the conical mixer is equipped with high-speed rotating blades, and the rotating speed of the blades is 600 rpm. The bonded iron-based powder obtained after mixing evenly enters different detection channels for powder performance and compaction performance analysis. The powder dust collection unit and the powder fluidity and bulk density collection unit are used to analyze the physical properties of the powder. The powder entering the middle shoe is pressed on a fully auto...

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Abstract

The invention belongs to the technical field of powder metallurgy product preparation and relates to a method for high-throughput research and preparation of iron-based powder metallurgy products. A high-throughput research equipment is designed to inject the polymer components in the organic component storage tank into the binder solution storage tank under the control of the computer. The binder enters the conical mixer through the atomizing nozzle, and is mixed with the metal raw material powder and dried. The cohesive powder passes through different detection channels, and the powder dust collection unit, the powder fluidity and bulk density collection unit, the compact size collection unit and the compact weight collection unit are used to automatically collect the physical properties of the powder and the compact density . This method can design special components for customized products, shorten the development cycle, and improve the accuracy of iron-based powder metallurgy product design.

Description

technical field [0001] The invention belongs to the technical field of powder metallurgy preparation and relates to a method for high-throughput research and preparation of iron-based powder metallurgy products. Background technique [0002] Iron-based powder metallurgy products have a wide range of applications in the fields of automobiles, machinery equipment, national defense and military industry. Iron-based powder metallurgy products contain a variety of alloying elements, including Cu, Ni, Mo, Cr, Mn, P, C and other alloying elements. At the same time, the iron-based powder needs to be bonded. Various fine alloy element powders are adhered to the surface of large iron powder particles through the bonding process by means of the adhesion of the binder, so as to obtain a good fluidity. It is a bonded iron-based powder with high performance and high compressibility, aiming to improve the uniformity of microstructure and mechanical properties, dimensional accuracy, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/02B22F1/00B22F3/02C22C38/04C22C38/08C22C38/12C22C38/18C22C38/22C22C38/40C22C38/44
CPCC22C38/04C22C38/08C22C38/12C22C38/18C22C38/22C22C38/40C22C38/44B22F3/003B22F3/02B22F9/026B22F1/103B22F1/10
Inventor 章林吴昊阳陈彦孙海身陈芳芳宋利军吴茂任淑彬曲选辉
Owner UNIV OF SCI & TECH BEIJING
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