JPH0344127B2 - - Google Patents
Info
- Publication number
- JPH0344127B2 JPH0344127B2 JP58012772A JP1277283A JPH0344127B2 JP H0344127 B2 JPH0344127 B2 JP H0344127B2 JP 58012772 A JP58012772 A JP 58012772A JP 1277283 A JP1277283 A JP 1277283A JP H0344127 B2 JPH0344127 B2 JP H0344127B2
- Authority
- JP
- Japan
- Prior art keywords
- kgf
- bolt
- tensile strength
- bar
- delayed fracture
- 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.)
- Expired - Lifetime
Links
- 230000003111 delayed effect Effects 0.000 claims description 35
- 238000005496 tempering Methods 0.000 claims description 27
- 239000002344 surface layer Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000010791 quenching Methods 0.000 claims description 9
- 230000000171 quenching effect Effects 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 6
- 229910001562 pearlite Inorganic materials 0.000 claims description 6
- 229910000734 martensite Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 27
- 229910000831 Steel Inorganic materials 0.000 description 21
- 239000010959 steel Substances 0.000 description 21
- 238000012360 testing method Methods 0.000 description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 8
- 238000005336 cracking Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- NJYFRQQXXXRJHK-UHFFFAOYSA-N (4-aminophenyl) thiocyanate Chemical compound NC1=CC=C(SC#N)C=C1 NJYFRQQXXXRJHK-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 102220062469 rs786203185 Human genes 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1277283A JPS59226116A (ja) | 1983-01-31 | 1983-01-31 | 耐遅れ破壊特性を有する高張力ボルトおよびその製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1277283A JPS59226116A (ja) | 1983-01-31 | 1983-01-31 | 耐遅れ破壊特性を有する高張力ボルトおよびその製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59226116A JPS59226116A (ja) | 1984-12-19 |
| JPH0344127B2 true JPH0344127B2 (zh) | 1991-07-05 |
Family
ID=11814693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1277283A Granted JPS59226116A (ja) | 1983-01-31 | 1983-01-31 | 耐遅れ破壊特性を有する高張力ボルトおよびその製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59226116A (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005083141A1 (ja) * | 2004-03-02 | 2005-09-09 | Honda Motor Co., Ltd. | 耐遅れ破壊特性及び耐リラクセーション特性に優れた高強度ボルト |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5467026B2 (ja) * | 2010-10-21 | 2014-04-09 | 新日鐵住金株式会社 | Ｐｃ鋼材の遅れ破壊特性評価方法 |
| EP3276189B1 (de) * | 2016-07-29 | 2020-03-25 | KAMAX Holding GmbH & Co. KG | Hochfeste schraube mit einer enthärtungsschicht |
| WO2023243730A1 (ja) * | 2022-06-17 | 2023-12-21 | 濱中ナット株式会社 | 表層部に高周波焼き戻し調質層を有する中炭素クロムモリブデン鋼からなる高強度鋼製部材及びその製造方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4870616A (zh) * | 1971-12-27 | 1973-09-25 | ||
| JPS4943816A (zh) * | 1972-09-01 | 1974-04-25 |
-
1983
- 1983-01-31 JP JP1277283A patent/JPS59226116A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4870616A (zh) * | 1971-12-27 | 1973-09-25 | ||
| JPS4943816A (zh) * | 1972-09-01 | 1974-04-25 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005083141A1 (ja) * | 2004-03-02 | 2005-09-09 | Honda Motor Co., Ltd. | 耐遅れ破壊特性及び耐リラクセーション特性に優れた高強度ボルト |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59226116A (ja) | 1984-12-19 |
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