阅读说明：本技术 一种钢球生产工艺 (Steel ball production process ) 是由 梁晓珉 于 2020-11-20 设计创作，主要内容包括：本发明公开了一种钢球生产工艺,包括步骤：球坯收集、粗检、光球、硬磨、初研、检测、初次精研、二次精研、表面处理、清洗、成品检验、包装。通过上述步骤对钢球在生产过程中的加料和添加剂等进行严格的选择控制,从而使得钢球的生产质量得到保证。(The invention discloses a steel ball production process, which comprises the following steps: collecting ball blanks, roughly inspecting, polishing balls, hard grinding, primarily grinding, detecting, primarily lapping, secondarily lapping, performing surface treatment, cleaning, inspecting finished products and packaging. The feeding, additives and the like of the steel ball in the production process are strictly selected and controlled through the steps, so that the production quality of the steel ball is ensured.)

1. A steel ball production process is characterized by comprising the following steps:

a. collecting ball blanks: conveying and collecting the ball blank subjected to cold heading;

b. and (4) coarse detection: detecting whether the shape of the ball blank has serious defects;

c. light ball: performing photosphere on a polishing machine;

d. hard grinding: grinding by using a grinding wheel on a ball grinder;

e. initial research: carrying out primary grinding on the steel ball;

f. and (3) detection: detecting the appearance of the primarily ground steel ball;

g. primary fine grinding: carrying out first precision grinding on the steel ball;

h. secondary fine grinding; carrying out secondary precision grinding on the steel ball;

i. surface treatment: processing the surface of the steel ball after the fine grinding;

j. cleaning: adding cleaning fluid into the steel ball after the secondary fine grinding for cleaning;

k. inspecting a finished product; carrying out overall and comprehensive inspection on the steel balls after cleaning;

l, packaging: the steel balls are packed to be convenient for transportation.

2. The process for producing a steel ball as claimed in claim 1, wherein in the step b, the ball blank having defects which are still difficult to be compensated by post-processing is discarded during the inspection.

3. The steel ball production process according to claim 2, wherein in the step f, the appearance of the steel ball is detected by an appearance method, namely, the steel ball is observed by eyes under a fluorescent lamp or by means of a low magnification magnifier, and whether the appearance of the steel ball meets the requirement is judged by naked eyes.

4. A process for producing a steel ball as claimed in claim 3, wherein in step f, the steel ball with high material requirement or strict precision requirement is subjected to eddy current flaw detection or ultrasonic flaw detection.

5. The process for producing steel balls according to claim 4, wherein in the steps g and h, the lapping liquid is composed of abrasive grains, a surfactant and cooling lubricant.

6. The process for producing steel balls according to claim 5, wherein in the step g and the step h, the abrasive particles are chromium trioxide particles, the surfactant is oleic acid, and the cooling lubricant is N15 machine oil.

7. The steel ball production process according to claim 6, wherein in the step j, the cleaning mode is that an isolation disc type brush is used for cleaning.

8. The process for producing steel balls as claimed in claim 7, wherein in the step j, the cleaning solutions are alcohol and clear water, and the alcohol is firstly used for cleaning, and then the clear water is used for cleaning to remove the residual alcohol after the cleaning is finished.

9. The steel ball production process according to claim 8, wherein in the step k, both the appearance and the material of the steel ball need to be detected.

Technical Field

The invention relates to the field of steel ball processing, in particular to a steel ball production process.

Background

The ball valve, the opening and closing piece is driven by the valve rod, and the valve which rotates around the axis of the ball valve can also be used for adjusting and controlling fluid, wherein a strong shearing force is provided between the V-shaped ball core of the hard seal V-shaped ball valve and the metal valve seat of the surfacing hard alloy, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels.

The ball valve comprises a steel ball, a valve seat, a connecting piece and the like, wherein the quality of the steel ball determines the quality of the ball valve, so that the production and processing of the steel ball are particularly important for the production of the ball valve, an inherent system is basically formed in the steel ball processing in the existing market, the production efficiency reaches a very high level, but manufacturers pay attention to the production efficiency at first, the quality of the steel ball is not paid much attention, steps are reduced or poor additives are often replaced in the production process, and the quality of the steel ball is difficult to guarantee. Therefore, a complete and standard production process line is needed, so that the quality of the steel balls produced and processed can meet the requirements.

Disclosure of Invention

The invention aims to provide a steel ball production process, which solves the problem that the quality of steel balls cannot meet the requirement due to the fact that the steel balls are produced in an irregular mode.

The technical purpose of the invention is realized by the following technical scheme:

a steel ball production process comprises the following steps:

a. collecting ball blanks: conveying and collecting the ball blank subjected to cold heading;

b. and (4) coarse detection: detecting whether the shape of the ball blank has serious defects;

c. light ball: performing photosphere on a polishing machine;

d. hard grinding: grinding by using a grinding wheel on a ball grinder;

e. initial research: carrying out primary grinding on the steel ball;

f. and (3) detection: detecting the appearance of the primarily ground steel ball;

g. primary fine grinding: carrying out first precision grinding on the steel ball;

h. secondary fine grinding; carrying out secondary precision grinding on the steel ball;

i. surface treatment: processing the surface of the steel ball after the fine grinding;

j. cleaning: adding cleaning fluid into the steel ball after the secondary fine grinding for cleaning;

k. inspecting a finished product; carrying out overall and comprehensive inspection on the steel balls after cleaning;

l, packaging: the steel balls are packed to be convenient for transportation.

By adopting the technical scheme, the feeding, additives and the like of the steel ball in the production process are strictly selected and controlled through the steps, so that the production quality of the steel ball is ensured.

Preferably, in the step b, the ball blank having defects which are still difficult to be compensated for by the post-processing is discarded during the inspection.

By adopting the technical scheme, the quality of the ball blanks is improved by detecting the ball blanks, and only the ball blanks with the defects difficult to compensate in the later processing are removed in the screening process, so that the situation that qualified ball blanks can be compensated and improved in the subsequent steps is avoided, and the utilization rate of the ball blanks is improved.

Preferably, in the step f, the appearance of the steel ball is detected by an appearance method, that is, the steel ball is observed by eyes under a fluorescent lamp or by means of a low magnification magnifier, and whether the appearance of the steel ball meets the requirement is judged by naked eyes.

By adopting the technical scheme, whether the appearance of the steel ball meets the requirement after the initial grinding is judged through appearance detection, so that the steel balls which can enter the next stage are all qualified products.

Preferably, in step f, the steel ball is subjected to eddy current flaw detection or ultrasonic flaw detection in addition to steel balls requiring high material or high accuracy.

By adopting the technical scheme, the material of the steel ball can be judged through eddy current inspection or ultrasonic inspection, so that the material of the steel ball can meet the required requirements.

Preferably, in the steps g and h, the lapping liquid is composed of abrasive grains, a surfactant, and a cooling lubricant.

By adopting the technical scheme, the lapping liquid consists of abrasive particles, a surfactant and cooling lubricating oil, the abrasive particles, the surfactant and the cooling lubricating oil respectively play a role, and the lapping liquid is more efficient by selecting materials of the abrasive particles, the surfactant and the cooling lubricating oil and proportioning the materials of the abrasive particles, the surfactant and the cooling lubricating oil.

Preferably, in the step g and the step h, the abrasive particles are chromium trioxide particles, the surfactant is oleic acid, and the cooling lubricating oil is N15 mechanical oil.

By adopting the technical scheme, the chromium trioxide has good stability, the surface of the steel ball cannot be scratched and damaged in the chronic grinding process of the steel ball, the N15 mechanical oil can uniformly adhere the grinding materials to the surfaces of the grinding disc and the steel ball, the grinding disc and the steel ball are easy to clean after grinding is finished, and the oleic acid can improve the grinding efficiency as a surfactant.

Preferably, in the step j, the cleaning manner is cleaning with an isolation disc type brush.

By adopting the technical scheme, the isolation disc type brush is cleaned by utilizing the rotating brush to clean the steel ball in the isolation disc through the cleaning liquid, the steel ball can rotate under the action of the rotating isolation disc and is driven to pass through the rotating brush, so that the steel ball is formed to rotate around the two shafts simultaneously, and the included angle formed by the two rotating shafts can be changed within a larger range due to the continuous change of the position of the steel ball in the brush, thereby achieving the ideal cleaning effect.

Preferably, the cleaning solutions are alcohol and clear water, and the alcohol is firstly used for cleaning, and then the clear water is used for cleaning to remove residual alcohol after the cleaning is finished.

By adopting the technical scheme, firstly, impurities on the surface of the steel ball are removed by alcohol cleaning, and then, the residual alcohol on the surface of the steel ball is removed by clear water cleaning.

Preferably, in the step k, both the appearance and the material of the steel ball need to be detected.

By adopting the technical scheme, the appearance and the material of the steel ball are subjected to double detection, so that the appearance and the material of the finished steel ball can meet the requirements.

Drawings

FIG. 1 is a schematic process flow diagram of an embodiment.

Detailed Description

The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.

Referring to fig. 1, a steel ball production process includes the steps of:

a. collecting ball blanks: and transporting and collecting the ball blank subjected to cold heading.

b. And (4) coarse detection: whether the shape of the ball blank has serious defects is detected, the shape of the ball blank only needs to be roughly detected by naked eyes at the position, the ball blank with the serious defects is removed, the ball blank with the defects which can be compensated through later steps does not need to be cleared, the quality of the ball blank is improved through rough detection, only the ball blank with the defects which are difficult to compensate through later processing is removed during screening, the situation that qualified ball blanks can be compensated and improved in the subsequent steps is removed is avoided, and therefore the utilization rate of the ball blank is improved.

c. Light ball: the steps of polishing ball are replaced by filing and soft grinding, so that the process is shortened, two stages and annular bands of the steel ball blank are ground under the action of pressure, and the surface allowance of the steel ball can be removed, so that certain quality and precision can be obtained.

d. Hard grinding: grinding is carried out on a ball grinding machine by using a grinding wheel so as to remove surface defects caused by the treatment of the previous step, but the hard grinding also causes some new small defects such as grinding marks or spots on the surface of the steel ball, so that the steel ball needs to be cleaned in the subsequent grinding.

e. Initial research: the steel ball is primarily ground, the surface defects of the steel ball caused by hard grinding are removed through coarse grinding, and no preparation is made for subsequent fine grinding.

f. And (3) detection: the appearance of the steel ball after the primary grinding is detected, wherein the appearance of the steel ball is detected by adopting an appearance method, namely, the steel ball is observed by eyes under a fluorescent lamp or by means of a low magnification magnifier, whether the appearance of the steel ball meets the requirement or not is judged by naked eyes, and whether the appearance of the steel ball meets the requirement after the primary grinding or not is judged by appearance detection, so that the steel ball which can enter the next stage is a qualified product; if steel balls with high material requirements or strict precision requirements are met, eddy current flaw detection or ultrasonic flaw detection is needed, and the material of the steel balls can be judged through eddy current flaw detection or ultrasonic flaw detection, so that the material of the steel balls can meet the required requirements.

g. Primary fine grinding: the steel ball is precisely ground for the first time, and when the steel ball is finely ground for the first time, the appearance needs to be detected before and after the fine grinding, and the detection needs to be carried out on each finely ground steel ball.

h. Secondary fine grinding; carrying out secondary precision grinding on the steel ball, wherein appearance detection is required before and after the secondary precision grinding, but sampling detection can be adopted during detection after the secondary precision grinding; the appearance is continuously detected in the primary lapping and the secondary lapping processes, so that the quality of the steel ball in the lapping and processing process is ensured.

In the primary lapping process and the secondary lapping process, lapping liquid consists of abrasive particles, a surfactant and cooling lubricating oil, wherein the abrasive particles are chromium trioxide particles, the stability of the chromium trioxide is good, in the chronic grinding process of the steel ball, the surface of the steel ball cannot be scratched and damaged, the cooling lubricating oil is N15 mechanical oil, the N15 mechanical oil can enable the abrasive to be uniformly adhered to the surfaces of a grinding disc and the steel ball, the grinding disc and the steel ball are easy to clean after grinding is finished, the surfactant is oleic acid, the oleic acid is used as the surfactant, the grinding efficiency can be improved, the three play a role respectively, and the grinding liquid is more efficient through selection of materials of the three and the proportion of the three. And the lapping liquid prepared from the three materials has the advantages of no toxicity, no peculiar smell and no foaming, and meets the requirement of environmental protection.

i. Surface treatment: and (3) treating the surface of the finely ground steel ball, wherein an antirust and noise-proof coating needs to be coated on the steel ball with the antirust and noise-proof requirements.

j. Cleaning: the steel ball to after the secondary lapping adds the washing liquid and washs, the cleaning method adopts the washing of isolation disk brush, it utilizes rotatory brush to carry out abluent process through the steel ball of washing liquid in to the isolation disc to keep apart the disk brush washing, the steel ball can be the rotation under the effect of rotatory isolation disc, and pass through under it drives by rotatory brush, thereby form the steel ball and rotate simultaneously around two axles, because the position of steel ball in the brush constantly changes, make the contained angle that two rotation axes formed can change in great range, thereby reach the cleaning performance of ideal. In the cleaning process, firstly, impurities on the surface of the steel ball are removed through alcohol cleaning, and then, residual alcohol on the surface of the steel ball is removed through clear water cleaning, so that the effect of complete cleaning is achieved.

k. Inspecting a finished product; the steel ball after being cleaned is integrally and comprehensively inspected, namely, the appearance and the material of the steel ball need to be detected, so that the appearance and the material of the finished steel ball can meet the requirements, the appearance of the steel ball is still detected by naked eyes, and the hardness of the steel ball is detected by a Rockwell hardness tester through the material detection, so that whether the material of the steel ball meets the requirements or not is judged.

l, packaging: the steel balls are packed to be convenient for transportation.

The steel ball quality is strictly controlled by frequently detecting the steel ball in the production and processing process of the steel ball through the steps, the lapping effect is ensured by accurately configuring the lapping liquid, the cleaning effect is ensured by reasonably selecting the cleaning liquid, and the quality of the produced and processed steel ball is ensured through the standardized program steps.