CN104372252A - Manufacturing method of bolting steel - Google Patents
Manufacturing method of bolting steel Download PDFInfo
- Publication number
- CN104372252A CN104372252A CN201410700338.8A CN201410700338A CN104372252A CN 104372252 A CN104372252 A CN 104372252A CN 201410700338 A CN201410700338 A CN 201410700338A CN 104372252 A CN104372252 A CN 104372252A
- Authority
- CN
- China
- Prior art keywords
- bolting steel
- bolting
- steel
- steel ingot
- bolt
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a manufacturing method of bolting steel. The manufacturing method includes the following steps: casting a bolting steel ingot made by the following components; forging the bolting steel ingot, and annealing the bolting steel ingot being forged; quenching the bolting steel ingot obtained in the above step, tempering the bolting steel ingot being quenched to obtain the bolting steel. Strength and ductility of the bolting steel manufactured by the method are improved effectively.
Description
Technical field
The present invention relates to bolt technical field, be specially a kind of preparation method of bolting steel.
Background technology
Bolt is generally positioned at equipment region of stress concentration, plays support, fixes and be connected work
With.When wind-induced vibration causes equipment stress concentration, bolt usually can be subject to tractive stress and stress in bending effect and deform.Meanwhile, due to the supporting role of bolt, its distortion also can cause the flexural deformation of top porcelain knob, and above-mentioned a series of distortion is easy to cause whole equipment to lose efficacy in high wind.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of preparation method of bolting steel, comprising the following steps:
1) cast the bolt steel ingot of following composition: the yttrium of 0.08% ~ 2.2%, the carbon of 0.25% ~ 0.4%, 0.3% ~ 1.4% chromium, 0.12% ~ 0.40% silicon, 0.42% ~ 0.6% manganese, the vanadium of 0.1% ~ 0.4%, the titanium of 0 ~ 0.01wt% and surplus iron;
2) described bolt steel ingot is forged, the bolt steel ingot after forging is carried out anneal;
3) by step 2) the bolt steel ingot that obtains carries out quench treatment, and the bolting steel after quench treatment is carried out temper, obtains bolting steel.
Preferably, the temperature of described annealing is 600 DEG C ~ 720 DEG C, and the soaking time of described annealing is 1 ~ 2h, and liquid nitrogen is cold.
Preferably, the temperature of described quenching is 780 DEG C ~ 850 DEG C, and the soaking time of described quenching is 1h ~ 2h, oil cooling.
Preferably, the temperature of described tempering is 500 DEG C ~ 600 DEG C, and the soaking time of described tempering is 1h ~ 2h, naturally cooling.
Beneficial effect of the present invention: the bolting steel intensity obtained by preparation method of the present invention and plasticity have been effectively improved.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
A preparation method for bolting steel, comprises the following steps:
1) cast the bolt steel ingot of following composition: the yttrium of 0.08% ~ 2.2%, the carbon of 0.25% ~ 0.4%, 0.3% ~ 1.4% chromium, 0.12% ~ 0.40% silicon, 0.42% ~ 0.6% manganese, the vanadium of 0.1% ~ 0.4%, the titanium of 0 ~ 0.01wt% and surplus iron;
2) described bolt steel ingot is forged, the bolt steel ingot after forging is carried out anneal;
3) by step 2) the bolt steel ingot that obtains carries out quench treatment, and the bolting steel after quench treatment is carried out temper, obtains bolting steel.
Preferably, the temperature of described annealing is 600 DEG C ~ 720 DEG C, and the soaking time of described annealing is 1 ~ 2h, and liquid nitrogen is cold.
Preferably, the temperature of described quenching is 780 DEG C ~ 850 DEG C, and the soaking time of described quenching is 1h ~ 2h, oil cooling.
Preferably, the temperature of described tempering is 500 DEG C ~ 600 DEG C, and the soaking time of described tempering is 1h ~ 2h, naturally cooling.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.
Claims (4)
1. a preparation method for bolting steel, is characterized in that, comprises the following steps:
1) cast the bolt steel ingot of following composition: the yttrium of 0.08% ~ 2.2%, the carbon of 0.25% ~ 0.4%, 0.3% ~ 1.4% chromium, 0.12% ~ 0.40% silicon, 0.42% ~ 0.6% manganese, the vanadium of 0.1% ~ 0.4%, the titanium of 0 ~ 0.01wt% and surplus iron;
2) described bolt steel ingot is forged, the bolt steel ingot after forging is carried out anneal;
3) by step 2) the bolt steel ingot that obtains carries out quench treatment, and the bolting steel after quench treatment is carried out temper, obtains bolting steel.
2. according to the preparation method of the bolting steel described in claim 1, it is characterized in that, the temperature of described annealing is 600 DEG C ~ 720 DEG C, and the soaking time of described annealing is 1 ~ 2h, and liquid nitrogen is cold.
3. according to the preparation method of the bolting steel described in claim 1, it is characterized in that, the temperature of described quenching is 780 DEG C ~ 850 DEG C, and the soaking time of described quenching is 1h ~ 2h, oil cooling.
4. according to the preparation method of the bolting steel described in claim 1, it is characterized in that, the temperature of described tempering is 500 DEG C ~ 600 DEG C, and the soaking time of described tempering is 1h ~ 2h, naturally cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410700338.8A CN104372252A (en) | 2014-11-28 | 2014-11-28 | Manufacturing method of bolting steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410700338.8A CN104372252A (en) | 2014-11-28 | 2014-11-28 | Manufacturing method of bolting steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104372252A true CN104372252A (en) | 2015-02-25 |
Family
ID=52551443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410700338.8A Pending CN104372252A (en) | 2014-11-28 | 2014-11-28 | Manufacturing method of bolting steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104372252A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006137460A1 (en) * | 2005-06-24 | 2006-12-28 | National Institute For Materials Science | High-strength self-tapping screw and process for producing the same |
| CN101831594A (en) * | 2010-04-12 | 2010-09-15 | 首钢总公司 | Method for manufacturing high-strength steel plate used in low-temperature environment |
| CN103805864A (en) * | 2014-03-13 | 2014-05-21 | 国家电网公司 | Bolting steel and preparation method thereof |
-
2014
- 2014-11-28 CN CN201410700338.8A patent/CN104372252A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006137460A1 (en) * | 2005-06-24 | 2006-12-28 | National Institute For Materials Science | High-strength self-tapping screw and process for producing the same |
| CN101831594A (en) * | 2010-04-12 | 2010-09-15 | 首钢总公司 | Method for manufacturing high-strength steel plate used in low-temperature environment |
| CN103805864A (en) * | 2014-03-13 | 2014-05-21 | 国家电网公司 | Bolting steel and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王勇围 等: "碳和硅对Mn系空冷贝氏体钢回火韧性的影响", 《钢铁》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150225 |
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| RJ01 | Rejection of invention patent application after publication |