CN111690940B - Optimization process for manufacturing blank surface based on medical hip joint handle - Google Patents
Optimization process for manufacturing blank surface based on medical hip joint handle Download PDFInfo
- Publication number
- CN111690940B CN111690940B CN202010603206.9A CN202010603206A CN111690940B CN 111690940 B CN111690940 B CN 111690940B CN 202010603206 A CN202010603206 A CN 202010603206A CN 111690940 B CN111690940 B CN 111690940B
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- Prior art keywords
- shot blasting
- hip joint
- product
- surface treatment
- nitric acid
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
Abstract
The invention provides an optimization process for manufacturing a blank surface based on a medical hip joint handle, which can remove graphite residues on the surface of a product, thereby reducing surface defects such as pits, roughness, granular attachments and the like and improving the quality of the product. Which comprises the following steps: the method comprises the following steps: performing surface treatment on the forge piece by using a crawler-type steel sand shot blasting machine; step two: and (4) putting the forged piece treated in the step one into a mixed solution of nitric acid and hydrofluoric acid for surface treatment.
Description
Technical Field
The invention relates to the technical field of surface treatment, in particular to an optimization process for manufacturing a blank surface based on a medical hip joint handle.
Background
Artificial joints have been around a century old from design to application, with artificial hip joints being the most widely used class. With the development of medicine, the demand of artificial hip joints is increasing. The artificial hip joint consists of a hip joint handle part, a mortar cup and a liner, wherein the hip joint handle part is mainly forged by high-nitrogen stainless steel, titanium alloy, cobalt-chromium-molybdenum alloy, high-temperature alloy and the like. However, graphite remains on the surface of the product during forging of the hip joint stem piece, so that the surface of the workpiece cannot be contacted with chemical milling liquid or corrosive liquid, surface defects such as pits, roughness, granular attachments, wavy pattern protrusions and the like appear on the surface of the product, and the appearance and the use of the product are seriously affected.
Disclosure of Invention
Aiming at the problem that the graphite residue on the surface of a product in the forging process of a hip joint stem piece causes the surface of a workpiece part to be incapable of chemical milling or corrosion treatment, the invention provides an optimization process based on the surface of a medical hip joint stem blank, which can remove the graphite residue on the surface of the product, thereby reducing the surface defects of pits, rough and granular attachments and the like and improving the product quality.
The technical scheme is as follows: an optimization process for manufacturing a blank surface based on a medical hip joint handle is characterized by comprising the following steps of: the method comprises the following steps: performing surface treatment on the forge piece by using a crawler-type steel sand shot blasting machine; step two: and (4) putting the forged piece treated in the step one into a mixed solution of nitric acid and hydrofluoric acid for surface treatment.
It is further characterized in that:
the shot blasting capacity of the crawler-type steel sand shot blasting machine is 120 kg/min;
the treatment temperature of the second step is 30-50 ℃;
the content of the nitric acid is 120 g/L-180 g/L; the content of hydrofluoric acid is 180 g/L-220 g/L;
the volume ratio of the nitric acid to the hydrofluoric acid is 1.5: 1-2.5: 1;
the treatment time of the second step is 1min-2 min.
The invention has the beneficial effects that: the invention removes the residual graphite lubricant existing on the surface of the product by changing the shot blasting mode and the surface treatment mode, reduces the defects of pockmarks, roughness, granular attachments and the like on the surface of the product, improves the surface quality of the product, increases the competitiveness of the product and optimizes the production process.
Detailed Description
Example 1: and (3) carrying out surface treatment on the forge piece by using a crawler-type steel sand shot blasting machine, wherein the shot blasting amount is 120kg/min, the shot blasting time is 30min, and the steel sand is shot on the surface of the forge piece and is used for removing the graphite lubricant residue in the forging process. Then putting the forged piece into HNO 3 And HF mixed solution with the volume ratio of 2: 1, wherein the content of nitric acid is 180g/L, the content of hydrofluoric acid is 200g/L, and the mixed solution is subjected to surface treatment for 2min at the temperature of 30 ℃ to remove graphite and other impurities which are not removed by a shot blasting machine, so that the surface roughness of the obtained product is 0.5, and no granular attachments exist.
Example 2: and (3) carrying out surface treatment on the forge piece by using a crawler-type steel sand shot blasting machine, wherein the shot blasting amount is 120kg/min, the shot blasting time is 30min, and the steel sand is shot on the surface of the forge piece and is used for removing the graphite lubricant residue in the forging process. Then putting the forged piece into HNO 3 And HF mixed solution in a volume ratio of 2.5: 1, wherein the content of nitric acid is 120g/L, the content of hydrofluoric acid is 180g/L, and the mixed solution is subjected to surface treatment for 1.5min at 40 ℃ to remove graphite and other impurities which are not removed by the shot blasting machine, so that the surface roughness of the obtained product is 0.6, and no granular attachments exist.
Example 3: and (3) carrying out surface treatment on the forge piece by using a crawler-type steel sand shot blasting machine, wherein the shot blasting amount is 120kg/min, the shot blasting time is 30min, and the steel sand is shot on the surface of the forge piece and is used for removing the graphite lubricant residue in the forging process. Then putting the forged piece into HNO 3 And HF bodyIn the mixed solution with the volume ratio of 1.5: 1, the content of nitric acid is 150g/L, the content of hydrofluoric acid is 220g/L, and the mixed solution is subjected to surface treatment for 1min at 50 ℃ for removing graphite and other impurities which are not removed by a shot blasting machine, so that the surface roughness of the obtained product is 0.6, and no granular attachments exist.
Comparative example 1: and (3) carrying out surface treatment on the forge piece by using a turntable type steel sand shot blasting machine, wherein the shot blasting amount is 120kg/min, the shot blasting time is 30min, and the steel sand is shot on the surface of the forge piece and is used for removing the graphite lubricant residue in the forging process. Then putting the forged piece into HNO 3 And HF mixed solution with the volume ratio of 2: 1, wherein the content of nitric acid is 180g/L, the content of hydrofluoric acid is 200g/L, and the mixed solution is subjected to surface treatment for 2min at the temperature of 30 ℃ to remove graphite and other impurities which are not removed by the shot blasting machine, so that the product is rough in surface, 1.1 in roughness and free of granular attachments.
Comparative example 2: and (3) carrying out surface treatment on the forge piece by using a crawler-type steel sand shot blasting machine, wherein the shot blasting amount is 120kg/min, the shot blasting time is 30min, and the steel sand is shot on the surface of the forge piece and is used for removing the graphite lubricant residue in the forging process. Then putting the forged piece into HNO 3 And HF mixed solution with the volume ratio of 15: 1, wherein the content of nitric acid is 180g/L, the content of hydrofluoric acid is 200g/L, and the mixed solution is subjected to surface treatment for 1min at 15 ℃ to remove graphite and other impurities which are not removed by the shot blasting machine, so that the surface roughness of the obtained product is 0.7, and no granular attachments exist.
Comparative example 3: and (3) carrying out surface treatment on the forge piece by using a turntable type steel sand shot blasting machine, wherein the shot blasting amount is 120kg/min, the shot blasting time is 30min, and the steel sand is shot on the surface of the forge piece and is used for removing the graphite lubricant residue in the forging process. Then putting the forged piece into HNO 3 And HF mixed solution with the volume ratio of 15: 1, wherein the content of nitric acid is 180g/L, the content of hydrofluoric acid is 200g/L, and the mixed solution is subjected to surface treatment for 1min at 15 ℃ to remove graphite and other impurities which are not removed by a shot blasting machine, so that the obtained product has a rough surface and has very obvious residues on the side surface and the bottom of the tank.
It can be seen from the above examples and comparative examples that the method described in the examples can not only remove the residual graphite lubricant existing on the surface of the product and reduce the defects of pockmarks, roughness, and granular attachments on the surface of the product, but also has low surface roughness, better surface quality, and less consumed solution, and can reduce the processing cost.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (2)
1. An optimization process for manufacturing a blank surface based on a medical hip joint handle is characterized by comprising the following steps of: the method comprises the following steps: performing surface treatment on the forge piece by using a crawler-type steel sand shot blasting machine, and removing residual graphite lubricant existing on the surface of the product; step two: putting the forged piece treated in the first step into a mixed solution of nitric acid and hydrofluoric acid for surface treatment, wherein the content of nitric acid is 120-180 g/L; the content of hydrofluoric acid is 180 g/L-220g/L, the volume ratio of nitric acid to hydrofluoric acid is 1.5: 1-2.5: 1, the treatment temperature is 30-50 ℃, and the treatment time is 1-2 min.
2. The optimized process for manufacturing a blank surface based on a medical hip joint stem according to claim 1, wherein the optimized process comprises the following steps: the shot blasting capacity of the crawler-type steel sand shot blasting machine is 120 kg/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010603206.9A CN111690940B (en) | 2020-06-29 | 2020-06-29 | Optimization process for manufacturing blank surface based on medical hip joint handle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010603206.9A CN111690940B (en) | 2020-06-29 | 2020-06-29 | Optimization process for manufacturing blank surface based on medical hip joint handle |
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| Publication Number | Publication Date |
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| CN111690940A CN111690940A (en) | 2020-09-22 |
| CN111690940B true CN111690940B (en) | 2022-09-16 |
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| CN202010603206.9A Active CN111690940B (en) | 2020-06-29 | 2020-06-29 | Optimization process for manufacturing blank surface based on medical hip joint handle |
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Citations (6)
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| CN1326724A (en) * | 2000-12-28 | 2001-12-19 | 南京宝色钛业有限公司 | precise die forging method for producing titanium alloy artificial joint |
| EP1695676A1 (en) * | 2005-02-25 | 2006-08-30 | WALDEMAR LINK GmbH & Co. KG | Method of producing a medical implant made of a beta-Titanium-Molybdenum-alloy and according implant |
| KR20130009920A (en) * | 2011-07-16 | 2013-01-24 | 태광금속 | Methord of hot-forging for titanium artificial-joint of thereof |
| CN104032343A (en) * | 2014-05-14 | 2014-09-10 | 蚌埠富源电子科技有限责任公司 | Novel electroplating pre-treatment technology for titanium and titanium alloy |
| DE102014103962A1 (en) * | 2014-03-24 | 2015-09-24 | Ghv Schmiedetechnik Gmbh | Feumurkomponente a hip joint prosthesis and method for producing a femoral component of a hip joint prosthesis |
| CN106011714A (en) * | 2016-06-01 | 2016-10-12 | 洛阳双瑞精铸钛业有限公司 | Method for producing thin TA4 titanium material by roll type cold rolling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE447393B (en) * | 1978-09-27 | 1986-11-10 | Sumitomo Electric Industries | PROCEDURE FOR THE PREPARATION OF A HEAT-SMALL MATERIAL OF POWDER |
| JP4110378B2 (en) * | 2002-07-23 | 2008-07-02 | 株式会社カサタニ | Lubricant for warm plastic working of magnesium and magnesium alloy and processing method using the lubricant |
| US9623371B1 (en) * | 2015-09-28 | 2017-04-18 | Savannah River Nuclear Solutions, Llc | Low temperature vapor phase digestion of graphite |
| CN106862298B (en) * | 2017-02-15 | 2018-08-24 | 西安爱德万思医疗科技有限公司 | A kind of preparation method of the degradable kirsite capillary silk material of medical bio |
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2020
- 2020-06-29 CN CN202010603206.9A patent/CN111690940B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326724A (en) * | 2000-12-28 | 2001-12-19 | 南京宝色钛业有限公司 | precise die forging method for producing titanium alloy artificial joint |
| EP1695676A1 (en) * | 2005-02-25 | 2006-08-30 | WALDEMAR LINK GmbH & Co. KG | Method of producing a medical implant made of a beta-Titanium-Molybdenum-alloy and according implant |
| KR20130009920A (en) * | 2011-07-16 | 2013-01-24 | 태광금속 | Methord of hot-forging for titanium artificial-joint of thereof |
| DE102014103962A1 (en) * | 2014-03-24 | 2015-09-24 | Ghv Schmiedetechnik Gmbh | Feumurkomponente a hip joint prosthesis and method for producing a femoral component of a hip joint prosthesis |
| CN104032343A (en) * | 2014-05-14 | 2014-09-10 | 蚌埠富源电子科技有限责任公司 | Novel electroplating pre-treatment technology for titanium and titanium alloy |
| CN106011714A (en) * | 2016-06-01 | 2016-10-12 | 洛阳双瑞精铸钛业有限公司 | Method for producing thin TA4 titanium material by roll type cold rolling method |
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| CN111690940A (en) | 2020-09-22 |
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