CN101085452A - Producing technique for steel pipe cool sizing - Google Patents
Producing technique for steel pipe cool sizing Download PDFInfo
- Publication number
- CN101085452A CN101085452A CN200610014161.1A CN200610014161A CN101085452A CN 101085452 A CN101085452 A CN 101085452A CN 200610014161 A CN200610014161 A CN 200610014161A CN 101085452 A CN101085452 A CN 101085452A
- Authority
- CN
- China
- Prior art keywords
- sizing
- steel pipe
- cool
- producing technique
- roll
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004513 sizing Methods 0.000 title claims description 52
- 238000013461 design Methods 0.000 claims abstract description 12
- 238000007689 inspection Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims description 13
- 239000003208 petroleum Substances 0.000 claims description 6
- 238000005098 hot rolling Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000012467 final product Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Sawing (AREA)
Abstract
The steel tube cold radius fixing comprises the procedures of selecting material with the outer radius of the material bigger than the upper limit of the standard, composed of the design, adjustment and radius calibration of the rolling hole, inspection, cutting and final product delivery. It completely solves the difficulty of low yield rate of oil sleeve tube. It is simple, high in productivity, adjusted by corresponding roller, relying on the hydraulic pushing force to form the rolling hole, to get to the shrink of radius, calibrating circle, and rectifying the tube with quick operation. It is energy economical. It requires small investment and land occupation, free from heating furnace and cold bed. The yield rate is high, precise in adjustment dimension, free from influence of thermal expansion.
Description
Technical field
The present invention relates to a kind of production technology of petroleum casing pipe.Particularly relate to a kind of producing technique for steel pipe cool sizing that can accurately make large-sized oil casing and line pipe.
Background technology
Along with the increase of large-sized oil casing (more than the external diameter 300mm) and the effective amount of extra large underground pipelines, also more and more higher at present to the technological requirement of producing this kind tubing.Because the external diameter of petroleum casing pipe and line pipe, ovality require relatively stricter, hot rolling technology according to routine is difficult to reach standard-required, the steel pipe caliber size of producing is easy to less than standard size, sometimes reach standard-sized requirement and be difficult to guarantee its ovality again, so lumber recovery is lower, manpower and materials are caused very big waste.
Summary of the invention
Technical problem to be solved by this invention is that a kind of producing technique for steel pipe cool sizing that can accurately make large-sized oil casing and line pipe is provided.
The technical solution adopted in the present invention is: a kind of producing technique for steel pipe cool sizing is to be finished by following operation: raw material is selected operation, requires the upper limit of the outside dimension overgauge size of mother tube; The cool sizing operation, include design of Roller, roll adjustment, utilize the roll pass adjust mother tube to be carried out the process of sizing; Inspection process; The sawing operation; Finished product is handed over the storehouse operation.
Select in the operation at raw material, selected raw material is the petroleum casing pipe and the line pipe of hot rolling.
Select in the operation 0～6mm of described outside dimension overgauge upper dimension bound at raw material.
In the cool sizing operation, described design of Roller is according to the corresponding roll of the size design of required sizing, and adopts four rollers to become the circle sizing.
In the cool sizing operation, described design of Roller comprises and will reserve the roll gap of 8～16mm between four rollers.
In the cool sizing operation, the adjustment of described roll is will adjust to standard size less than the finished product external diameter by the interior diameter of a circle that four rollers form according to the standard size of finished product.
To adjust to less than the standard-sized 4～12mm of finished product external diameter by the interior diameter of a circle that four rollers form.
In the cool sizing operation, described sizing is check mother tube well to be sent into push the machine roller-way, utilizes the thrust of hydraulic cylinder that mother tube is advanced the roll pass of having adjusted, and corrects the ovality of mother tube.
In the cool sizing operation, described sizing is check mother tube well to be sent into push the machine roller-way, uses the driven by motor roll rotation, relies on the frictional force drive steel pipe between roll and the steel pipe to advance, and corrects the ovality of mother tube.
Described sawing operation is that the part of steel pipe two ends distortion behind the sizing is cut away.
Producing technique for steel pipe cool sizing of the present invention has thoroughly solved and has produced a petroleum casing pipe and the lower difficult problem of line pipe lumber recovery.Have following characteristics: 1, technology is simple, the production efficiency height.Use corresponding roll to adjust pass, rely on the thrust of hydraulic pressure that pipe was pushed away roll pass, reach the effect of undergauge, rule circle, aligning, it is convenient that operation is carried out.2, power consumption is few in the production process.Owing to adopt cold deformation, therefore save a large amount of energy than traditional hot-working.3, equipment investment is few, and floor space is little.Owing to be cold deformation, do not need heating furnace and cold bed, reduced investment and floor space.4, the qualification rate height of product.5, the product physical dimension is accurate, and through the product of cool sizing, the pipe end ovality can be controlled in the 1.5mm scope, the external diameter physical dimension can be controlled at ± the 1.6mm scope in, screw thread processing or the adverse slope mouth follow-up for product bring convenience.
The specific embodiment
Below in conjunction with embodiment producing technique for steel pipe cool sizing of the present invention is made a detailed description.
Producing technique for steel pipe cool sizing of the present invention is to be finished by following operation: raw material is selected operation; The cool sizing operation; Inspection process; The sawing operation.
Wherein,
Raw material is selected operation: raw material is selected the petroleum casing pipe and the line pipe of hot rolling, mother tube outside dimension in the operation of rolling is only very much not little, require the upper limit of the outside dimension overgauge size of mother tube, (material, wall thickness and external diameter according to raw material are relevant) generally requires 0～6mm of outside dimension overgauge upper dimension bound.
Cool sizing operation: adjustment, this three step of sizing of including design of Roller, roll.
Described design of Roller is according to the different corresponding rolls of sizing size design, and adopts four rollers to become the circle sizing, and four rollers place upper and lower, left and right respectively, and the roll cambered surface is consistent with standard size, reserves the roll gap of 8～16mm between four rollers.
The adjustment of described roll is the standard size requirement according to finished product, will adjust to standard size less than the finished product external diameter by the interior diameter of a circle that four rollers form, and promptly adjusts to less than the standard-sized 4～12mm of finished product external diameter.
Described sizing is check mother tube well to be sent into push the machine roller-way, utilize the thrust of hydraulic cylinder mother tube to be advanced the roll pass of having adjusted, roll forms symmetrical pressure at circumferencial direction, and mother tube produces distortion under the effect of pressure, thus the ovality of having corrected mother tube.
Described sizing can also be check mother tube well to be sent into push the machine roller-way, after raw material enters roller-way, adopt the driven by motor roll rotation, rely on the frictional force drive steel pipe between roll and the steel pipe to advance, like this, mother tube produces distortion, the ovality of having corrected mother tube under the effect of frictional force and pressure.
Inspection process: by testing, returning again of exceeding standard of outside dimension carried out cool sizing according to the standard of finished product.
Sawing operation: be that the part of steel pipe two ends distortion behind the sizing is cut away with sawing machine.
Finished product is handed over the storehouse operation: be that qualified product is sent to storehouse, for next procedure (cutting thread, adverse slope mouth) is prepared.
Claims (10)
1. a producing technique for steel pipe cool sizing is characterized in that, is to be finished by following operation: raw material is selected operation, requires the upper limit of the outside dimension overgauge size of mother tube; The cool sizing operation, include design of Roller, roll adjustment, utilize the roll pass adjust mother tube to be carried out the process of sizing; Inspection process; The sawing operation; Finished product is handed over the storehouse operation.
2. producing technique for steel pipe cool sizing according to claim 1 is characterized in that, selects in the operation at raw material, and selected raw material is the petroleum casing pipe and the line pipe of hot rolling.
3. producing technique for steel pipe cool sizing according to claim 1 is characterized in that, selects in the operation 0～6mm of described outside dimension overgauge upper dimension bound at raw material.
4. producing technique for steel pipe cool sizing according to claim 1 is characterized in that, in the cool sizing operation, described design of Roller is according to the corresponding roll of the size design of required sizing, and adopts four rollers to become the circle sizing.
5. producing technique for steel pipe cool sizing according to claim 4 is characterized in that, in the cool sizing operation, described design of Roller comprises and will reserve the roll gap of 8～16mm between four rollers.
6. producing technique for steel pipe cool sizing according to claim 1 is characterized in that, in the cool sizing operation, the adjustment of described roll is will adjust to standard size less than the finished product external diameter by the interior diameter of a circle that four rollers form according to the standard size of finished product.
7. producing technique for steel pipe cool sizing according to claim 6 is characterized in that, will be adjusted to less than the standard-sized 4～12mm of finished product external diameter by the interior diameter of a circle that four rollers form.
8. producing technique for steel pipe cool sizing according to claim 1, it is characterized in that in the cool sizing operation, described sizing is check mother tube well to be sent into push the machine roller-way, utilize the thrust of hydraulic cylinder that mother tube is advanced the roll pass of having adjusted, correct the ovality of mother tube.
9. producing technique for steel pipe cool sizing according to claim 1, it is characterized in that, in the cool sizing operation, described sizing is check mother tube well to be sent into push the machine roller-way, use the driven by motor roll rotation, rely on the frictional force drive steel pipe between roll and the steel pipe to advance, correct the ovality of mother tube.
10. producing technique for steel pipe cool sizing according to claim 1 is characterized in that, described sawing operation is that the part of steel pipe two ends distortion behind the sizing is cut away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610014161.1A CN101085452A (en) | 2006-06-08 | 2006-06-08 | Producing technique for steel pipe cool sizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610014161.1A CN101085452A (en) | 2006-06-08 | 2006-06-08 | Producing technique for steel pipe cool sizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101085452A true CN101085452A (en) | 2007-12-12 |
Family
ID=38936723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610014161.1A Pending CN101085452A (en) | 2006-06-08 | 2006-06-08 | Producing technique for steel pipe cool sizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101085452A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101433989B (en) * | 2008-12-18 | 2011-03-09 | 天津钢管集团股份有限公司 | Method for welding cold-expansion tube production line draw rod |
| CN105834674A (en) * | 2015-01-15 | 2016-08-10 | 宝山钢铁股份有限公司 | Manufacturing method for special diameter sleeve |
| CN114669600A (en) * | 2022-05-13 | 2022-06-28 | 扬州市华生焊管设备有限公司 | High accuracy steel pipe intelligence sizing mill |
-
2006
- 2006-06-08 CN CN200610014161.1A patent/CN101085452A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101433989B (en) * | 2008-12-18 | 2011-03-09 | 天津钢管集团股份有限公司 | Method for welding cold-expansion tube production line draw rod |
| CN105834674A (en) * | 2015-01-15 | 2016-08-10 | 宝山钢铁股份有限公司 | Manufacturing method for special diameter sleeve |
| CN114669600A (en) * | 2022-05-13 | 2022-06-28 | 扬州市华生焊管设备有限公司 | High accuracy steel pipe intelligence sizing mill |
| CN114669600B (en) * | 2022-05-13 | 2023-11-28 | 扬州市华生焊管设备有限公司 | High-precision intelligent sizing mill for steel pipes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201799751U (en) | Welding structure adopting expansion after welding for heat exchange pipe and pipe sheet | |
| CN102218642B (en) | Manufacturing method of thick wall steel pipe with small radius-thickness ratio used for building structure | |
| CN101352728A (en) | Novel technique for producing large-sized seamless steel pipe | |
| CN105563021A (en) | Processing method for inner bores of cylinder barrel parts | |
| CN105234200A (en) | On-line tube-expanding production process of large-diameter seamless steel tubes | |
| WO2018108105A1 (en) | Rolled pipe thread processing method, rolling head, apparatus, module, production line, and product thereof | |
| CN104907353A (en) | Production method of high-chromium ferrite stainless-steel seamless steel pipe blank | |
| CN101085452A (en) | Producing technique for steel pipe cool sizing | |
| CN103386497A (en) | Automatic cutter-feeding pipeline profiling groove tool device | |
| CN101977703A (en) | Method of producing seamless metal tube and punch for use therein | |
| CN201415235Y (en) | Nylon straightening roller used for pipe straightening machine | |
| CN203541167U (en) | Small-caliber steel pipe straightener for high-frequency longitudinal welded pipe production line | |
| CN206981484U (en) | A kind of full roller shaped device for being used to prepare metal pipe material | |
| US8800334B2 (en) | Rolling mill of rotating expander type for tubular bodies with tip-stabilizing system | |
| CN101318200B (en) | Precision rolling process for heavy-caliber skew rolling reeling weldless steel tube | |
| CN103071680B (en) | Pipe jacking machine unit | |
| CN201244596Y (en) | Diagonal rolling tube mill guide plate | |
| CN101743074B (en) | Pusher device for piercing-rolling process and seamless pipe manufacturing method using same | |
| CN211539058U (en) | Cold heading processing straightening material feeding unit | |
| CN102744501A (en) | Method for nufacturing asphalt mixing equipment | |
| CN102489968A (en) | Flanging welded cylinder manufacturing method | |
| CN203526981U (en) | Vibration reduction device for deep hole processing of stainless steel thin walled tubes | |
| CN203886934U (en) | Hole expanding device applied to perforating of seamless steel tube | |
| CN207547347U (en) | Steel pipe spiral groove rolling device | |
| CN201361606Y (en) | Adjustable comma presser roll |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |