CN104625530A - Crane runway forcing molding technology and moulds thereof - Google Patents
Crane runway forcing molding technology and moulds thereof Download PDFInfo
- Publication number
- CN104625530A CN104625530A CN201410744747.8A CN201410744747A CN104625530A CN 104625530 A CN104625530 A CN 104625530A CN 201410744747 A CN201410744747 A CN 201410744747A CN 104625530 A CN104625530 A CN 104625530A
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- CN
- China
- Prior art keywords
- mould
- moulds
- welding
- crane
- joint
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/26—Railway- or like rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses crane runway forcing molding technology and moulds thereof. The forcing molding technology comprises the following steps that 1, anti-deformation cushion blocks are arranged under two runways near a joint; 2, a copper cushion is arranged under the joint of the runways; 3, truncated edges are welded in an overlaying mode on the lower portions of the end heads of the runways; 4, the moulds are installed on the two side faces of the joint respectively, the moulds are fixed through bolts, and the gaps between the moulds and the runways are regulated to range from 4 mm to 6 mm; 5, rail webs are welded; 6, rail tops are welded; 7, the moulds are dismounted, and heat treatment after welding is performed; 8, the joint is ground, and the rail tops are ground flush. The crane runway forcing molding technology and the moulds thereof have the advantages that the operation is convenient, the performance is easy, the live operation is facilitated, the manufacture cost is low, the adverse impact caused by a non-integrated runway for a crane is eliminated, the service life of the crane is prolonged, and the safety potential hazards of the crane are reduced.
Description
Technical field
The present invention relates to a kind of crane runway and force moulding process and device thereof.
Background technology
Existing domestic middle-size and small-size lifting manufacturing firm rail welding, belongs to the welding of high-carbon (manganese) steel, particularly adopts manual electric arc welding, still belong to world-famous puzzle so far at welding technology field.So crane track is generally non-integral type track so far, this rail joint position all has a negative impact to the wearing and tearing of wheel, the carrying of girder, easily causes the cracking of beam stiffener weld seam, causes severe compromise; Particularly large-tonnage, the performance of high-level crane especially obviously, cause finally not reaching quality requirement.
Summary of the invention
Object of the present invention is just to provide a kind of crane runway that track can be made to form integral rail and forces moulding process and mould thereof.
The object of the invention is to be realized by such technical scheme, a kind of crane runway forces moulding process and mould thereof, and described pressure moulding process step is as follows: (1), below two tracks, near joint, place reversible deformation cushion block respectively; (2) below the joint of two tracks, copper packing is placed; (3), at the bottom, termination of two tracks difference built-up welding root face; (4), at the two sides of joint location difference installation mold, and fix with bolt, the gap of adjustment mould and track is 4mm ~ 6mm; (5), the web of the rail is welded; (6), tread is welded; (7) remove mould, carry out post weld heat treatment; (8), polishing blank area, tread is polished.
Wherein, front in described step (5), welding need be carried out front to track preheating 350 DEG C ~ 400 DEG C, interlayer temperature > 250 DEG C; Be heat 400 DEG C ~ 500 DEG C after welding, then carry out slow cooling in the post weld heat treatment of step (7).
In the present invention, in described step (4), mould therefor comprises elongated mould body, a side of described die ontology has the cambered surface coordinated with the web of the rail of track, the lower surface of described die ontology has the plane coordinated with the upper surface of the flange of rail of track, and described cambered surface and plane are respectively arranged with bolt hole.
Owing to have employed technique scheme, the present invention have easy to operate, implement simple advantage, adopt and that it facilitate on-the-spot operation, manufacturing cost is lower, eliminate the adverse effect that non-integral type track causes crane, improve the service life of crane, reduce the potential safety hazard of crane.
Accompanying drawing explanation
Accompanying drawing of the present invention is described as follows:
Fig. 1 is welding procedure schematic diagram of the present invention;
Fig. 2 is the fit structure schematic diagram of mould of the present invention and track.
Detailed description of the invention
Be described in further detail the specific embodiment of the present invention below in conjunction with accompanying drawing, but the present invention is not limited to these embodiments, any improvement or alternative on the present embodiment essence spirit, still belongs to the claims in the present invention scope required for protection.
Embodiment 1: as shown in Figure 1, 2, a kind of crane runway forces moulding process and mould thereof, it is characterized in that: described pressure moulding process step is as follows: (1, below two tracks 1, near joint, place reversible deformation cushion block 2 respectively; (2, below the joint of two tracks 1, place copper packing 3; (3, in the bottom, termination of two tracks 1 respectively built-up welding root face 4; (4, in the two sides of joint location respectively installation mold, and fix with bolt, the gap of adjustment mould and track is 4mm ~ 6mm; (5, welding the web of the rail; (6, welding tread; (7, remove mould, carry out post weld heat treatment; (8, polishing blank area, tread is polished.
Welded by said method, improve welding efficiency, the performance of its integral solder joint, between flash welding and exothermic welding, can meet instructions for use.Copper packing one side guarantee welding process middle orbit is in Main Girder Welding together, the same with reversible deformation cushion block in addition, mainly ensures in welding process and weld in rear material fusion and cooling procedure to produce to be bent upwards distortion, and it is straight that object ensures to weld rear track.
Wherein, front in described step (5), welding need be carried out front to track preheating 350 DEG C ~ 400 DEG C, interlayer temperature > 250 DEG C; Be heat 400 DEG C ~ 500 DEG C after welding, then carry out slow cooling in the post weld heat treatment of step (7).
By above-mentioned process, the fatigue strength of its track is improved, and extends the service life of track.
In the present invention, (in 4, mould therefor comprises elongated mould body 5 to described step, a side of described die ontology 5 has the cambered surface coordinated with the web of the rail of track, the lower surface of described die ontology 5 has the plane coordinated with the upper surface of the flange of rail of track, and described cambered surface and plane are respectively arranged with bolt hole 6.
Claims (3)
1. crane runway forces moulding process and a mould thereof, it is characterized in that: described pressure moulding process step is as follows: (1, near joint, place reversible deformation cushion block (2) respectively two tracks (1) belows; (2, below the joint of two tracks 1, place copper packing (3); (3, respectively built-up welding root face (4) in the bottom, termination of two tracks (1); (4, in the two sides of joint location respectively installation mold, and fix with bolt, the gap of adjustment mould and track is 4mm ~ 6mm; (5, welding the web of the rail; (6, welding tread; (7, remove mould, carry out post weld heat treatment; (8, polishing blank area, tread is polished.
2. crane runway as claimed in claim 1 forces moulding process and mould thereof, it is characterized in that: (before 5, need carry out welding front to track preheating 350 DEG C ~ 400 DEG C, interlayer temperature > 250 DEG C in described step; In step, (post weld heat treatment of 7 is, heats 400 DEG C ~ 500 DEG C after welding, then carries out slow cooling.
3. crane runway as claimed in claim 2 forces moulding process and mould thereof, it is characterized in that: (in 4, mould therefor comprises elongated mould body (5) to described step, a side of described die ontology (5) has the cambered surface coordinated with the web of the rail of track, the lower surface of described die ontology (5) has the plane coordinated with the upper surface of the flange of rail of track, and described cambered surface and plane are respectively arranged with bolt hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744747.8A CN104625530A (en) | 2014-12-09 | 2014-12-09 | Crane runway forcing molding technology and moulds thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744747.8A CN104625530A (en) | 2014-12-09 | 2014-12-09 | Crane runway forcing molding technology and moulds thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104625530A true CN104625530A (en) | 2015-05-20 |
Family
ID=53205009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410744747.8A Pending CN104625530A (en) | 2014-12-09 | 2014-12-09 | Crane runway forcing molding technology and moulds thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104625530A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385846A (en) * | 2021-06-15 | 2021-09-14 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Welding production method of bainite steel rail |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202023120U (en) * | 2011-04-03 | 2011-11-02 | 丁小菊 | Rail fixing device capable of adjusting gauge |
| CN102635042A (en) * | 2012-04-12 | 2012-08-15 | 中铁十一局集团第三工程有限公司 | Method for welding seamless steel rail by moving flash welding on site |
| CN202730570U (en) * | 2012-08-29 | 2013-02-13 | 中铁上海工程局有限公司 | Profiling and fixing support concerning normalizing treatment of welded joints of steel rail |
| CN202989711U (en) * | 2013-01-07 | 2013-06-12 | 中建新疆工业设备安装有限公司 | Track welding matching device |
| CN103264217A (en) * | 2013-05-24 | 2013-08-28 | 中国铁道科学研究院金属及化学研究所 | Movable type groove type rail flash welding machine |
-
2014
- 2014-12-09 CN CN201410744747.8A patent/CN104625530A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202023120U (en) * | 2011-04-03 | 2011-11-02 | 丁小菊 | Rail fixing device capable of adjusting gauge |
| CN102635042A (en) * | 2012-04-12 | 2012-08-15 | 中铁十一局集团第三工程有限公司 | Method for welding seamless steel rail by moving flash welding on site |
| CN202730570U (en) * | 2012-08-29 | 2013-02-13 | 中铁上海工程局有限公司 | Profiling and fixing support concerning normalizing treatment of welded joints of steel rail |
| CN202989711U (en) * | 2013-01-07 | 2013-06-12 | 中建新疆工业设备安装有限公司 | Track welding matching device |
| CN103264217A (en) * | 2013-05-24 | 2013-08-28 | 中国铁道科学研究院金属及化学研究所 | Movable type groove type rail flash welding machine |
Non-Patent Citations (2)
| Title |
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| 崔变兰: "起重机轨道接头的焊接", 《起重运输机械》 * |
| 杨锦辉: "U71Mn钢轨道焊接工艺探讨", 《广东科技》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385846A (en) * | 2021-06-15 | 2021-09-14 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Welding production method of bainite steel rail |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |