CN108754433A - A kind of method for treating stainless steel surfaces - Google Patents
A kind of method for treating stainless steel surfaces Download PDFInfo
- Publication number
- CN108754433A CN108754433A CN201810597512.9A CN201810597512A CN108754433A CN 108754433 A CN108754433 A CN 108754433A CN 201810597512 A CN201810597512 A CN 201810597512A CN 108754433 A CN108754433 A CN 108754433A
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- CN
- China
- Prior art keywords
- stainless steel
- source electrode
- steel surfaces
- oozing
- treating stainless
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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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
- C23C14/32—Vacuum evaporation by explosion; by evaporation and subsequent ionisation of the vapours, e.g. ion-plating
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a kind of method for treating stainless steel surfaces, include the following steps：Using Zr plates as source electrode, source electrode polishing is cleaned out, base material uses 304 austenitic stainless steels, it carries out oozing zirconium processing using multifunctional ion chemical heat-treatment furnace, interpolar is away from 20-30mm, argon gas operating air pressure 30-35Pa, 1000-1060 DEG C of holding temperature, voltage difference 300-350V between source electrode and cathode, soaking time 4-5h；Sample cools to room temperature with the furnace.The present invention is simple to operate, not can cause environmental pollution；After oozing zirconium processing, the hardness of specimen surface improves about 3 times, and hardness from outward appearance to inner essence continuously decreases, distribution gradient；In 65 μm of stainless steel surface formation, the infiltration layer of even compact；The relatively corrosive speed of stainless steel substrate be respectively ooze Zr alloy-layers 3.15 times, 6.23 times, 3.12 times；Stainless steel surface corrosion is more serious, and slight local corrosion only occurs in layer surface, it is seen that the corrosion resistance of stainless steel makes moderate progress after oozing zirconium processing.
Description
Technical field
The present invention relates to a kind of method for treating stainless steel surfaces, belong to field of metal surface treatment.
Background technology
Stainless steel has excellent corrosion resistance, weldability and comprehensive mechanical property, in aerospace, chemical industry, atomic energy etc.
Extensive use in industry, but its case hardness is relatively low, and the corrosion resisting property in specific corrosive environment needs to be further increased.
Method common at present is one layer of wear-resisting corrosion layer of surface attaching, however uses such scheme service life very short, thus can
The hardened stainless steel in a manner of being considered as surface infiltration layer.
Invention content
In view of the above-mentioned problems of the prior art, the object of the present invention is to provide it is a kind of it is simple to operate, will not be right
The method for treating stainless steel surfaces that environment pollutes, treated stainless steel surface have good corrosion resistance and higher
Hardness.
To achieve the above object, the technical solution adopted by the present invention is：A kind of method for treating stainless steel surfaces, including it is as follows
Step：
(1) it uses Zr plates as source electrode, source electrode polishing is cleaned out, base material uses 304 austenitic stainless steels, shove charge
Before, by the sample successively liquid honing through different model, polishing machine is used in combination to polish, then totally and dried with ultrasonic cleaning；
(2) it carries out oozing zirconium processing using multifunctional ion chemical heat-treatment furnace, technological parameter is:Interpolar is away from 20-30mm, argon
Gas operating air pressure 30-35Pa, 1000-1060 DEG C of holding temperature, the voltage difference 300-350V between source electrode and cathode, soaking time
4-5h；
(3) sample cools to room temperature with the furnace.
As a preferred scheme, the heat-treatment furnace model is DGLT-15 types.
As a preferred scheme, the Zr plates purity 99.99%.
As a preferred scheme, step (2) interpolar is away from 20mm, argon gas operating air pressure 30Pa, holding temperature
1000℃。
As a preferred scheme, the voltage difference 350V between the source electrode and cathode of the step (2), soaking time
4h。
The present invention is simple to operate, not can cause environmental pollution；After oozing zirconium processing, the hardness of specimen surface carries
About 3 times high, hardness from outward appearance to inner essence continuously decreases, distribution gradient；Stainless steel surface forms 65 μm, even compact oozes
Layer；The relatively corrosive speed of stainless steel substrate be respectively ooze Zr alloy-layers 3.15 times, 6.23 times, 3.12 times；Stainless steel surface
Corrode more serious, and slight local corrosion only occurs in layer surface, it is seen that the corrosion resistance of stainless steel has after oozing zirconium processing
Improved.
Specific implementation mode
With reference to embodiment, invention is further described in detail.
Embodiment 1
Method for treating stainless steel surfaces includes the following steps：
(1) it uses Zr plates as source electrode, source electrode polishing is cleaned out, base material uses 304 austenitic stainless steels, shove charge
Before, by the sample successively liquid honing through different model, polishing machine is used in combination to polish, then totally and dried with ultrasonic cleaning；
(2) it carries out oozing zirconium processing using multifunctional ion chemical heat-treatment furnace, technological parameter is:Interpolar is away from 20mm, argon gas
Operating air pressure 30Pa, 1000 DEG C of holding temperature, the voltage difference 300V between source electrode and cathode, soaking time 4h；
(3) sample cools to room temperature with the furnace.
Sample hardness, load 50g, load time 10s are detected with HV1000 type microhardness testers.Using potentiostatic method and electricity
Chemical measurement instrument carries out electrochemical corrosion test, uses acetone, distilled water flushing clean successively on sample, sample work area is
1cm2, remaining non-working surface seals with paraffin.Then sample is immersed in corrosive liquid, it is electric using saturated calomel electrode as reference
Pole, platinum electrode are connected between reference electrode and Electrode with salt bridge as auxiliary electrode, and Luggin capillary is away from Electrode 1-
2mm carries out cathode and anode polarization after stablizing 10min, finally calculates corrosion rate.
Through measuring, the hardness on surface is 1530HV0.05, hence it is evident that is more than the case hardness of stainless steel substrate
(350HV0.05), it is seen then that after oozing zirconium processing, the hardness of specimen surface improves about 3 times, and hardness from outward appearance to inner essence gradually drops
It is low, distribution gradient.
In 65 μm of stainless steel surface formation, the infiltration layer of even compact；The relatively corrosive speed of stainless steel substrate is oozed respectively
3.15 times, 6.23 times, 3.12 times of Zr alloy-layers；Stainless steel surface corrosion is more serious, and layer surface only occurs slightly
Local corrosion, it is seen that the corrosion resistance of stainless steel makes moderate progress after oozing zirconium processing.
Embodiment 2
Method for treating stainless steel surfaces includes the following steps：
(1) it uses Zr plates as source electrode, source electrode polishing is cleaned out, base material uses 304 austenitic stainless steels, shove charge
Before, by the sample successively liquid honing through different model, polishing machine is used in combination to polish, then totally and dried with ultrasonic cleaning；
(2) it carries out oozing zirconium processing using multifunctional ion chemical heat-treatment furnace, technological parameter is:Interpolar is away from 30mm, argon gas
Operating air pressure 35Pa, 1060 DEG C of holding temperature, the voltage difference 350V between source electrode and cathode, soaking time 5h；
(3) sample cools to room temperature with the furnace.
Material property prepared by the embodiment is similar to Example 1.
Embodiment 3
Method for treating stainless steel surfaces includes the following steps：
(1) it uses Zr plates as source electrode, source electrode polishing is cleaned out, base material uses 304 austenitic stainless steels, shove charge
Before, by the sample successively liquid honing through different model, polishing machine is used in combination to polish, then totally and dried with ultrasonic cleaning；
(2) it carries out oozing zirconium processing using multifunctional ion chemical heat-treatment furnace, technological parameter is:Interpolar is away from 20mm, argon gas
Operating air pressure 30Pa, 1000 DEG C of holding temperature, the voltage difference 350V between source electrode and cathode, soaking time 4h；
(3) sample cools to room temperature with the furnace.
Material property prepared by the embodiment is similar to Example 1.
Claims (5)
1. a kind of method for treating stainless steel surfaces, which is characterized in that include the following steps：
(1) it uses Zr plates as source electrode, source electrode polishing is cleaned out, base material uses 304 austenitic stainless steels, will before shove charge
The sample liquid honing through different model successively, is used in combination polishing machine to polish, then clean with ultrasonic cleaning and dry；
(2) it carries out oozing zirconium processing using multifunctional ion chemical heat-treatment furnace, technological parameter is:Interpolar is away from 20-30mm, argon gas work
Make air pressure 30-35Pa, 1000-1060 DEG C of holding temperature, the voltage difference 300-350V between source electrode and cathode, soaking time 4-
5h；
(3) sample cools to room temperature with the furnace.
2. a kind of method for treating stainless steel surfaces according to claim 1, which is characterized in that the heat-treatment furnace model is
DGLT-15 types.
3. a kind of method for treating stainless steel surfaces according to claim 1, which is characterized in that the Zr plates purity
99.99%.
4. a kind of method for treating stainless steel surfaces according to claim 1, which is characterized in that step (2) interpolar away from
20mm, argon gas operating air pressure 30Pa, 1000 DEG C of holding temperature.
5. a kind of method for treating stainless steel surfaces according to claim 1, which is characterized in that the source electrode of the step (2)
Voltage difference 350V between cathode, soaking time 4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597512.9A CN108754433A (en) | 2018-06-12 | 2018-06-12 | A kind of method for treating stainless steel surfaces |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597512.9A CN108754433A (en) | 2018-06-12 | 2018-06-12 | A kind of method for treating stainless steel surfaces |
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| Publication Number | Publication Date |
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| CN108754433A true CN108754433A (en) | 2018-11-06 |
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| CN201810597512.9A Withdrawn CN108754433A (en) | 2018-06-12 | 2018-06-12 | A kind of method for treating stainless steel surfaces |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111055170A (en) * | 2020-01-14 | 2020-04-24 | 诸暨市领诚信息技术有限公司 | Metal material surface polishing treatment method |
-
2018
- 2018-06-12 CN CN201810597512.9A patent/CN108754433A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111055170A (en) * | 2020-01-14 | 2020-04-24 | 诸暨市领诚信息技术有限公司 | Metal material surface polishing treatment method |
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Application publication date: 20181106 |