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Special stainless steel ball production process for medical instruments

A technology for medical devices and production processes, applied in the field of production technology of special stainless steel balls for medical devices, can solve the problems of failing to meet the quality requirements and use requirements of stainless steel materials, unstable mass production, and insufficient grasp. The effect of eliminating the surface damage of the steel ball, high yield of finished products and high surface roughness

Active Publication Date: 2014-06-25
TSUBAKI HOOVER TAICANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, domestically produced stainless steel balls have no clear standards for the selection of stainless steel materials and material acceptance. At the same time, the lack of heat treatment conditions and surface passivation treatment technology for stainless steel balls will lead to unstable mass production and low efficiency; currently In the industry, each organizes production based on experience
[0003] Although the production of some stainless steel balls on the market also has the process of solid solution heat treatment and non-dynamic treatment (surface passivation treatment), but because of the difference in end use, the production of many steel balls has not fully implemented the above two processes. In addition, although Two processes have been implemented, but due to the limitation of the quality of domestic materials, and the lack of grasp of the different process methods formulated for different materials, the goals required after the implementation of the two processes have not been fully achieved, that is, the stainless steel material has not been achieved. The quality requirements and use requirements finally achieved after solution heat treatment and non-dynamic treatment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A production process of special stainless steel balls for medical equipment, characterized in that: comprising the following steps:

[0028] (1) Cold heading: stamping stainless steel wire into steel ball blanks, the stamping amount is 0.15-0.20mm;

[0029] (2) Light grinding: the rough balls after cold heading are processed by grinding machine and cast iron plate, cast iron plate: nodular cast iron, processing speed: 70rpm, pressure: 1-5Mpa, grinding medium: stainless steel cutting fluid;

[0030] (3) Solution heat treatment: heat treatment of light grinding, heating at a constant temperature of 1080°C for 2 hours, and then rapid cooling, so that the steel ball can achieve complete austenitization and "0" magnetic properties of the steel ball;

[0031] (4) Grinding: Mix the heat-treated steel ball with emery in the drum, and achieve uniform cutting on the surface of the steel ball through the rotation of the drum. The drum speed: 70rpm / min, the processing time: 350 min...

Embodiment 2

[0038] A production process of special stainless steel balls for medical equipment, characterized in that: comprising the following steps:

[0039] (1) Cold heading: stamping stainless steel wire into steel ball blanks, the stamping amount is 0.15-0.20mm;

[0040] (2) Light grinding: the rough ball after cold heading is processed by a grinder and a cast iron plate, the cast iron plate: nodular cast iron, processing speed: 30rpm, pressure: 1-5Mpa, grinding medium: stainless steel cutting fluid;

[0041] (3) Solution heat treatment: heat treatment of light grinding, heating at a constant temperature of 1080°C for 2 hours, and then rapid cooling, so that the steel ball can achieve complete austenitization and "0" magnetic properties of the steel ball;

[0042] (4) Grinding: The heat-treated steel balls are mixed with corundum in the drum, and the surface of the steel balls is evenly cut through the rotation of the drum. The drum speed: 50rpm / min, the processing time: 500 minutes,...

Embodiment 3

[0049] A production process of special stainless steel balls for medical equipment, characterized in that: comprising the following steps:

[0050] (1) Cold heading: stamping stainless steel wire into steel ball blanks, the stamping amount is 0.15-0.20mm;

[0051] (2) Light grinding: the rough ball after cold heading is processed by a grinder and a cast iron plate, the cast iron plate: nodular cast iron, processing speed: 100rpm, pressure: 1-5Mpa, grinding medium: stainless steel cutting fluid;

[0052] (3) Solution heat treatment: heat treatment of light grinding, heating at a constant temperature of 1080°C for 2 hours, and then rapid cooling, so that the steel ball can achieve complete austenitization and "0" magnetic properties of the steel ball;

[0053] (4) Grinding: The heat-treated steel ball is mixed with emery in the drum, and the steel ball surface is evenly cut through the rotation of the drum. The drum speed: 100rpm / min, the processing time: 200 minutes, the drum a...

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Abstract

The invention provides a special stainless steel ball production process for medical instruments. The special stainless steel ball production process includes steps of cold heading, buffing, solutionizing heat treatment, grinding, polishing, static treatment, automatic appearance selecting, inspecting of finished products and packaging. By controlling procedures such as thermal treatment, surface passivation (static treatment) and grinding, stable volume production of high-quality and high-precision stainless steel balls can be realized.

Description

technical field [0001] The invention belongs to the technical field of steel ball production, and in particular relates to a production process of special stainless steel balls for medical equipment. Background technique [0002] At present, the key process points that mainly affect the quality of steel balls in the production process of stainless steel balls are the implementation of materials, heat treatment and surface passivation processes. However, domestically produced stainless steel balls have no clear standards for the selection of stainless steel materials and material acceptance. At the same time, the lack of heat treatment conditions and surface passivation treatment technology for stainless steel balls will lead to unstable mass production and low efficiency; currently Each industry organizes production based on experience. [0003] Although the production of some stainless steel balls on the market also has the process of solid solution heat treatment and non-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 张立陈雅平
Owner TSUBAKI HOOVER TAICANG
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