JPS6436782A - Surface hardening method of saw or the like - Google Patents
Surface hardening method of saw or the likeInfo
- Publication number
- JPS6436782A JPS6436782A JP19144887A JP19144887A JPS6436782A JP S6436782 A JPS6436782 A JP S6436782A JP 19144887 A JP19144887 A JP 19144887A JP 19144887 A JP19144887 A JP 19144887A JP S6436782 A JPS6436782 A JP S6436782A
- Authority
- JP
- Japan
- Prior art keywords
- saw
- hard
- hard chromium
- plated
- plating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Electroplating Methods And Accessories (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
PURPOSE:To prevent hydrogen embrittlement from being generated on a hard plated layer by subjecting the surface of a saw to pickling treatment in a short time with acid liquid having specified composition before the following plating treatment in the case of plating hard chromium and hard metal on the surface of the saw and hardening it. CONSTITUTION:The surface of a saw made of steel is plated with hard metal such as hard chromium in order to improve the cutting quality and durability of the saw blade by hardening the surface. In this case, before plating treatment, the saw is subjected to such pretreatment that it is used as an anode in hydrochloric acid liquid contg. 2-5% oxidizing agent such as nitric acid, chromic acid anhydride and bichromate and 0.1-0.5% inhibitor and electrolytically pickled. Then after plating hard chromium thereon, the saw is heat-treated at >=150 deg.C for >=1hr to release hydrogen existing in the plated layer of hard chromium and thereby the saw teeth plated with hard chromium are prevented from being broken in pieces by hydrogen embrittlement and failure such as a crack and barrel folding is prevented from being generated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19144887A JPS6436782A (en) | 1987-07-30 | 1987-07-30 | Surface hardening method of saw or the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19144887A JPS6436782A (en) | 1987-07-30 | 1987-07-30 | Surface hardening method of saw or the like |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6436782A true JPS6436782A (en) | 1989-02-07 |
Family
ID=16274793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19144887A Pending JPS6436782A (en) | 1987-07-30 | 1987-07-30 | Surface hardening method of saw or the like |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6436782A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02282494A (en) * | 1989-04-24 | 1990-11-20 | Shimonoseki Mekki Kk | Method for preventing hydrogen embrittlement during electroplating |
US5326622A (en) * | 1989-10-27 | 1994-07-05 | Brother Kogyo Kabushiki Kaisha | Heat transferable inked ribbon |
WO2011120111A1 (en) * | 2010-03-29 | 2011-10-06 | Encarnacao Milton Jose Da | Constructive arrangement in saw blade |
US11230782B2 (en) * | 2018-01-04 | 2022-01-25 | Samsung Electronics Co., Ltd. | Passivation surface treatment of stainless steel |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4930615A (en) * | 1972-07-24 | 1974-03-19 | ||
JPS5750305B2 (en) * | 1976-05-13 | 1982-10-26 | ||
JPS5920751A (en) * | 1982-07-27 | 1984-02-02 | Isao Iizuka | System of preventing automobile from being stolen |
-
1987
- 1987-07-30 JP JP19144887A patent/JPS6436782A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4930615A (en) * | 1972-07-24 | 1974-03-19 | ||
JPS5750305B2 (en) * | 1976-05-13 | 1982-10-26 | ||
JPS5920751A (en) * | 1982-07-27 | 1984-02-02 | Isao Iizuka | System of preventing automobile from being stolen |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02282494A (en) * | 1989-04-24 | 1990-11-20 | Shimonoseki Mekki Kk | Method for preventing hydrogen embrittlement during electroplating |
US5326622A (en) * | 1989-10-27 | 1994-07-05 | Brother Kogyo Kabushiki Kaisha | Heat transferable inked ribbon |
WO2011120111A1 (en) * | 2010-03-29 | 2011-10-06 | Encarnacao Milton Jose Da | Constructive arrangement in saw blade |
US11230782B2 (en) * | 2018-01-04 | 2022-01-25 | Samsung Electronics Co., Ltd. | Passivation surface treatment of stainless steel |
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