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Quality evaluation method of recyclability for infinite life design of parts

A technology for quality evaluation and parts, applied in the field of recyclability quality evaluation, to achieve huge economic value, energy reduction, and resource saving effects

Inactive Publication Date: 2017-05-31
UNIV OF SHANGHAI FOR SCI & TECH
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  • Description
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AI Technical Summary

Problems solved by technology

Most of the existing recyclability evaluations are empirical, based on the evaluation of surface quality characteristics such as friction and wear, and do not involve parts that fail due to mechanical fatigue

Method used

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  • Quality evaluation method of recyclability for infinite life design of parts
  • Quality evaluation method of recyclability for infinite life design of parts
  • Quality evaluation method of recyclability for infinite life design of parts

Examples

Experimental program
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Embodiment Construction

[0022] like Figure 5 As shown, the recyclability quality evaluation method under the part infinite life design of the present invention comprises:

[0023] 1. Estimation of strength design margin of recycled parts;

[0024] 2. Evaluation of surface quality such as wear and corrosion of recycled parts;

[0025] 3. Testing of mechanical properties such as hardness, frequency, and stiffness of parts;

[0026] 4. Detection of unexpected defects in the manufacturing process of recycled parts;

[0027] 5. Residual strength and remaining life evaluation of recycled parts.

[0028] Examples:

[0029] Taking the original and recycled piston rod body of a construction machinery hydraulic cylinder as the object, such as figure 1 shown. exist figure 1 Among the piston rods, 001# is the original unused new piston rod, and 002#, 003# and 004# are the recycled piston rods. The piston rod body includes the shaft and earrings, the earrings and the shaft are integral forgings, the diam...

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Abstract

The invention relates to a quality evaluation method of recyclability for infinite life design of parts. The quality evaluation method comprises that (1) estimating surplus of the strength design of the recycled parts; (2) evaluating surface quality, such as abrasion, corrosion and so on, of the recycled parts; (3) testing mechanical characteristics, such as hardness, frequency, stiffness and so on, of the recycled parts; (4) detecting accidental defects of the recycled parts in the manufacturing process; (5) evaluating residual strength and residual life of the recycled parts. When the mechanical products are under the conditions of the infinite life design and extensive experience design. The quality evaluation method can be used for the quality assessment of the parts to be recycled and remanufactured after mechanical products are scrapped so as to save resources and energy, and reduce environmental pollution. Compared with original manufacturing products, the remanufactured products save cost of 50%, energy of 60 %, materials of 70%, and have great economic value.

Description

technical field [0001] The invention relates to a recyclability quality evaluation method under infinite life design of parts, which is used for the quality evaluation of parts recycling and remanufacturing after mechanical products are scrapped under the conditions of infinite life design and extensive empirical design of mechanical products. Background technique [0002] The remanufacturing of scrapped mechanical parts has huge economic value, which can save resources, energy and reduce environmental pollution. The cost of remanufactured products is 50% lower than that of original manufactured products, energy saving is 60%, and material saving is 70%. Remanufacturing has huge economic value. , can save resources, energy and reduce environmental pollution. The premise of remanufacturing recycled parts is that they have sufficient remaining strength and remaining life. Most of the existing recyclability evaluations are empirical, based on the evaluation of surface quality ...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01N33/00G01B21/00
CPCG01B21/00G01M13/00G01N33/00
Inventor 卢曦赵斌李稳王光存
Owner UNIV OF SHANGHAI FOR SCI & TECH
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