CN107253018A - A kind of boring method of rare metal light-wall pipe - Google Patents
A kind of boring method of rare metal light-wall pipe Download PDFInfo
- Publication number
- CN107253018A CN107253018A CN201710306596.1A CN201710306596A CN107253018A CN 107253018 A CN107253018 A CN 107253018A CN 201710306596 A CN201710306596 A CN 201710306596A CN 107253018 A CN107253018 A CN 107253018A
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- Prior art keywords
- pipe
- rare metal
- metal pipe
- steel pipe
- perforate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The boring method of the rare metal light-wall pipe of the present invention is after rare metal pipe is heated, steel pipe is nested with rare metal pipe, then perforate processing is carried out on the rare metal pipe for be nested with steel pipe, the rare metal pipe for being nested with steel pipe is integrally annealed after the completion of perforate, rare metal pipe and steel pipe are separated after the completion of annealing, the rare metal pipe after perforate is obtained.This method efficiently solves the problem of residual stress is excessive after yielding rare metal light-wall pipe clamping in perforate process, large area perforate difficulty, perforate, is particularly suitable for use in radius-thickness ratio than rare metal pipe larger, that perforate number is more.
Description
Technical field
The invention belongs to metal tube processing technique field, it is related to metal tube perforate, especially a kind of rare metal light-wall pipe
Boring method.
Background technology
In the prior art, the perforate processing method of metal tube, is typically first to carry out hole position line line, afterwards in common driller
Upper clamping, drilling are completed.But for light-wall pipe, using the processing method of prior art, in clamping process, light-wall pipe quilt can be caused
Folder is flat, and in boring procedure, because tube wall is relatively thin, bore edges are easily torn, after drilling, due to resilience, and the size in hole can occur
Change, it is impossible to meet the size of drawing requirement.If light-wall pipe needs the quantity of perforate more, difficulty of processing is bigger, less
It is easily worked out qualified product.Therefore, those skilled in the art's urgent need is a kind of can overcome the new of prior art defect to open
Hole technique.
The content of the invention
It is an object of the invention to the shortcoming for overcoming above-mentioned prior art, there is provided a kind of perforate side of rare metal light-wall pipe
Method, it can solve the problem that residual after yielding rare metal light-wall pipe clamping in perforate process, large area perforate difficulty, perforate
The problem of residue stress is excessive, is particular enable to be applicable the rare metal pipe that radius-thickness ratio is larger, perforate number is more.
The purpose of the present invention is achieved through the following technical solutions：
The boring method of rare metal light-wall pipe of the present invention is：It is embedded in rare metal pipe after rare metal pipe is heated
Steel pipe is covered, perforate processing is then carried out on the rare metal pipe for be nested with steel pipe, the dilute of steel pipe will be nested with after the completion of perforate
There is metal tube integrally to be annealed, rare metal pipe and steel pipe are separated after the completion of annealing, the rare metal pipe after perforate is obtained.
Further, the boring method of rare metal light-wall pipe of the invention specifically includes following steps：
Step 1: according to the rare metal pipe size for treating perforate, preparing steel pipe, car outer diameter of steel pipes；The external diameter of the steel pipe
Size is matched somebody with somebody in fact with rare metal bore；
Step 2: being inserted in after rare metal pipe is heated into 180 DEG C~200 DEG C outside unheated steel pipe, to rare gold
Belong to pipe and carry out perforate processing；
Step 3: the rare metal pipe after processing and steel pipe are integrally put into progress Stress relieving annealing processing in annealing furnace,
Annealing temperature is controlled at 250~280 DEG C, is incubated half an hour, is cooled to room temperature with the furnace afterwards；
Step 4: being taken out from annealing furnace, rare metal pipe is overall with steel pipe, and separation rare metal pipe and steel pipe are opened
Rare metal pipe behind hole.
Further, above-mentioned rare metal pipe is the thin-walled of titanium, titanium alloy, zirconium, zircaloy, tantalum, tantalum alloy, niobium or niobium alloy
Seamless pipe or the coiling welded pipe of thin-walled.
Further, above-mentioned steel pipe is seamless pipe or coiling welded pipe.When rare metal pipe is seamless pipe, the external diameter processing of steel pipe
To equal with rare metal bore；When rare metal pipe is coiling welded pipe, outer diameter of steel pipes is worked into average with rare metal pipe
Internal diameter is equal.
Further, in above step two, according to drawing processing request, drilling machine, milling machine or vertical machining centre pair are used
Rare metal pipe carries out perforate processing.
Compared with prior art, the invention has the advantages that：
1st, method of the invention is used when rare metal light-wall pipe is processed using the form that steel pipe is nested with pipe, effectively
Rigidity of the rare metal light-wall pipe in large area perforate process is ensure that, rare metal pipe is greatly reduced in clamping
Deformation in fixed and process.
2nd, method of the invention adds annealing process, and controls annealing temperature, substantially reduces rare metal after perforate
The remaining machining stress of pipe, turn avoid the oxidation of rare metal pipe.
3rd, method of the invention is particularly suitable for radius-thickness ratio than rare metal pipe larger, that perforate number is more.
Brief description of the drawings
Fig. 1 is perforate machining sketch chart of the present invention；
Fig. 2 is the rare metal tubular construction schematic diagram processed using the present invention；
Fig. 3 is Fig. 2 A-A sectional views.
Wherein：1 is rare metal pipe；2 be steel pipe.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1-3：The boring method of the rare metal light-wall pipe of the present invention is after rare metal pipe 1 is heated, dilute
There is metal tube 1 to be nested with steel pipe 2, perforate processing is then carried out on the rare metal pipe 1 for be nested with steel pipe 2, after the completion of perforate
The entirety of rare metal pipe 1 for being nested with steel pipe 2 is annealed, rare metal pipe 1 and steel pipe 2 are separated after the completion of annealing, is obtained
Rare metal pipe 1 after perforate.Concrete operation step is as follows：
1) according to the material of rare metal pipe 1 under rare metal light-wall pipe drawing requirement；The rare metal pipe 1 can be titanium, titanium
Alloy, zirconium, zircaloy, tantalum, tantalum alloy, the coiling welded pipe of the thin-wall seamless pipe or thin-walled of niobium or niobium alloy.
2) according to the size of rare metal pipe 1 for treating perforate, steel pipe 2, the external diameter of car steel pipe 2 are prepared；The outer diameter ruler of the steel pipe 2
It is very little to match somebody with somebody in fact with the internal diameter of rare metal pipe 1；The steel pipe 2 that the present invention is used is seamless pipe or coiling welded pipe.The selection of steel pipe is according to as follows
Rule.
When rare metal pipe 1 is seamless pipe, the external diameter of steel pipe 2 is worked into equal with the internal diameter of rare metal pipe 1.When rare
When metal tube 1 is coiling welded pipe, the external diameter of steel pipe 2 is worked into equal with the mean inside diameter of rare metal pipe 1.
3) rare metal pipe 1 is heated to being inserted in outside unheated steel pipe 2 after 180 DEG C~200 DEG C, to rare metal pipe
1 carries out perforate processing；Specific processing is needed according to drawing processing request, can use drilling machine, milling machine or vertical machining centre
Perforate processing is carried out to rare metal pipe 1.
4) overall be put into annealing furnace of the rare metal pipe 1 after processing and steel pipe 2 is subjected to Stress relieving annealing processing, annealing
Temperature control is incubated half an hour, cools to room temperature with the furnace afterwards at 250~280 DEG C.
5) rare metal pipe 1 is taken out from annealing furnace overall with steel pipe 2, separation rare metal pipe 1 and steel pipe 2 are opened
Rare metal pipe 1 behind hole.
The method to the present invention is further described with reference to embodiments：
Embodiment 1：
Titanium tube perforate：
(material is Step 1: rare metal pipe 1 under Vehicle Processing：Titanium, specification is：Length 150mm)；
(material is Step 2: the lower steel pipe 2 of cutting：Steel, specification is：Length 200mm), the internal diameter of car steel pipe 2 is arrivedTwo ends car is concordant；
Step 3: rare metal pipe 1 is heated uniformly into 180 DEG C~200 DEG C using oxyacetylene torch, in heating process not
Can at one the residence time it is long, in order to avoid cause selective oxidation.Rare metal pipe 1 after heating is entirely inserted in unheated steel
Outside pipe 2, the two ends of rare metal pipe 1 are away from the two ends of steel pipe 2 apart from 25mm.As shown in figure 1, being added according to the drawing of rare metal pipe 1
Work requirement, on rare metal pipe 1,240 are carried out using vertical machining centreThe processing in hole, will ensure rare gold in processing
Each hole machined may occur in which in place, not on category pipe 1 does not bore or does not drill through；
Step 4: after the completion of the hole machined of rare metal pipe 1, being carried out according to the position of drawing device to hole, quantity, size and depth
Examine.After the assay was approved, rare metal pipe 1 and the entirety of steel pipe 2 are put into electrical heating annealing furnace.Annealing furnace is opened, makes temperature
It is uniform to rise to 250~280 DEG C, half an hour is incubated, stops heating afterwards, makes annealing furnace Temperature fall to room temperature；
Step 5: it is overall with steel pipe 2 to take out rare metal pipe 1 from annealing furnace, using hammer and backing plate by rare metal
Pipe 1 is isolated from steel pipe 2, and the surfaces externally and internally of rare metal pipe 1 can not be hurt in separation process.Rare gold after Vehicle Processing separation
Belong to the both ends of the surface of pipe 1, obtain the rare metal pipe 1 after perforate, as shown in Figure 2.
Embodiment 2
Seamed zirconium pipe perforate：
Step 1: (material is shearing lower sheet materials：Zirconium, specification is：490 × 300 × 3mm), through plane side, roll, group
The processes such as weldering, school circle, being configured to rare metal pipe 1, (specification is：Length 300mm)；
Step 2: (material is shearing lower sheet materials：Steel, specification is：462 × 350 × 12mm), through plane side, roll, group
The processes such as weldering, school circle, being configured to steel pipe 2, (specification is： Length 200mm), the internal diameter of car steel pipe 2 is arrivedTwo ends
Car is concordant；
Step 3: rare metal pipe 1 is heated uniformly into 180 DEG C~200 DEG C using oxyacetylene torch, in heating process not
Can at one the residence time it is long, in order to avoid cause selective oxidation.Rare metal pipe 1 after heating is entirely inserted in unheated steel
Outside pipe 2, the two ends of rare metal pipe 1 are away from the two ends of steel pipe 2 apart from 25mm.As shown in figure 1, being added according to the drawing of rare metal pipe 1
Work requirement, on rare metal pipe 1,600 are carried out using milling machineThe processing in hole, will ensure rare metal pipe 1 in processing
Each upper hole machined may occur in which in place, not to be bored or does not drill through；
Step 4: after the completion of the hole machined of rare metal pipe 1, being carried out according to the position of drawing device to hole, quantity, size and depth
Examine.After the assay was approved, rare metal pipe 1 and the entirety of steel pipe 2 are put into electrical heating annealing furnace.Annealing furnace is opened, makes temperature
It is uniform to rise to 250~280 DEG C, half an hour is incubated, stops heating afterwards, makes annealing furnace Temperature fall to room temperature；
Step 5: it is overall with steel pipe 2 to take out rare metal pipe 1 from annealing furnace, using hammer and backing plate by rare metal
Pipe 1 is isolated from steel pipe 2, and the surfaces externally and internally of rare metal pipe 1 can not be hurt in separation process.Rare gold after Vehicle Processing separation
Belong to the both ends of the surface of pipe 1, obtain the rare metal pipe 1 after perforate, as shown in Figure 2.
It is described above, only it is presently preferred embodiments of the present invention, any limitation is not done to the present invention, it is every according to invention skill
Any simple modification, change and equivalent structure change that art is substantially made to above example, still fall within the technology of the present invention
In the protection domain of scheme.
Claims (6)
1. a kind of boring method of rare metal light-wall pipe, it is characterised in that after rare metal pipe (1) is heated, in rare gold
Category pipe (1) is nested with steel pipe (2), and perforate processing is then carried out on the rare metal pipe (1) for be nested with steel pipe (2), and perforate is complete
After by be nested with steel pipe (2) rare metal pipe (1) integrally annealed, after the completion of annealing separation rare metal pipe (1) and
Steel pipe (2), obtains the rare metal pipe (1) after perforate.
2. the boring method of rare metal light-wall pipe according to claim 1, it is characterised in that specifically include following step
Suddenly：
Step 1: according to rare metal pipe (1) size for treating perforate, preparing steel pipe (2), car steel pipe (2) external diameter；The steel pipe
(2) outside dimension is matched somebody with somebody in fact with rare metal pipe (1) internal diameter；
Step 2: rare metal pipe (1) is heated to be inserted in unheated steel pipe (2) outside after 180 DEG C~200 DEG C, to rare
Metal tube (1) carries out perforate processing；
Carried out Step 3: the rare metal pipe (1) after processing and steel pipe (2) are integrally put into annealing furnace at Stress relieving annealing
Reason, annealing temperature is controlled at 250~280 DEG C, is incubated half an hour, is cooled to room temperature with the furnace afterwards；
Step 4: taking out rare metal pipe (1) and steel pipe (2) entirety, separation rare metal pipe (1) and steel pipe from annealing furnace
(2) the rare metal pipe (1) after perforate, is obtained.
3. the boring method of rare metal light-wall pipe according to claim 2, it is characterised in that the rare metal pipe
(1) be titanium, titanium alloy, zirconium, zircaloy, tantalum, tantalum alloy, the coiling welded pipe of thin-wall seamless pipe or thin-walled of niobium or niobium alloy.
4. the boring method of rare metal light-wall pipe according to claim 2, it is characterised in that the steel pipe (2) is nothing
Slit-tube or coiling welded pipe.
5. the boring method of the rare metal light-wall pipe according to claim 2 or 4, it is characterised in that when rare metal pipe
(1) when being seamless pipe, the external diameter of steel pipe (2) is worked into equal with rare metal pipe (1) internal diameter；When rare metal pipe (1) is volume
During welded tube, steel pipe (2) external diameter is worked into equal with rare metal pipe (1) mean inside diameter.
6. the boring method of rare metal light-wall pipe according to claim 2, it is characterised in that in step 2, according to figure
Paper conversion requirement, perforate processing is carried out using drilling machine, milling machine or vertical machining centre to rare metal pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306596.1A CN107253018B (en) | 2017-05-04 | 2017-05-04 | A kind of boring method of rare metal thin-wall tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306596.1A CN107253018B (en) | 2017-05-04 | 2017-05-04 | A kind of boring method of rare metal thin-wall tube |
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| Publication Number | Publication Date |
|---|---|
| CN107253018A true CN107253018A (en) | 2017-10-17 |
| CN107253018B CN107253018B (en) | 2019-05-28 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2371413Y (en) * | 1999-04-15 | 2000-03-29 | 宝鸡有色金属加工厂 | Laminated metal composite tube |
| WO2002058870A1 (en) * | 2001-01-24 | 2002-08-01 | Izumi Corporation | Holder and chuck device |
| US20050254910A1 (en) * | 2004-04-30 | 2005-11-17 | Kane Kristopher A | Systems adapted to cooperate with an aperture forming tool and methods |
| CN200960612Y (en) * | 2006-09-30 | 2007-10-17 | 江苏飞船股份有限公司 | Internal expansion positioning drill fixture |
| CN201799518U (en) * | 2010-09-03 | 2011-04-20 | 河南科隆集团有限公司 | Tapping module for thin walled tube |
| CN102794607A (en) * | 2012-08-10 | 2012-11-28 | 西安天力金属复合材料有限公司 | Manufacturing method for large-scale tantalum/zirconium/titanium/steel compound plate |
| CN102990108A (en) * | 2011-09-16 | 2013-03-27 | 江苏标新久保田工业有限公司 | Processing process of deep hole of nickel-based alloy petrochemical large-caliber thin-wall pipeline |
| CN104439417A (en) * | 2014-11-28 | 2015-03-25 | 重庆速腾机械制造有限公司 | Drilling and positioning device for hollow pipes |
| CN105750843A (en) * | 2016-04-29 | 2016-07-13 | 中国原子能科学研究院 | Inner hole machining method for molybdenum alloy thin-walled long pipe |
-
2017
- 2017-05-04 CN CN201710306596.1A patent/CN107253018B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2371413Y (en) * | 1999-04-15 | 2000-03-29 | 宝鸡有色金属加工厂 | Laminated metal composite tube |
| WO2002058870A1 (en) * | 2001-01-24 | 2002-08-01 | Izumi Corporation | Holder and chuck device |
| US20050254910A1 (en) * | 2004-04-30 | 2005-11-17 | Kane Kristopher A | Systems adapted to cooperate with an aperture forming tool and methods |
| CN200960612Y (en) * | 2006-09-30 | 2007-10-17 | 江苏飞船股份有限公司 | Internal expansion positioning drill fixture |
| CN201799518U (en) * | 2010-09-03 | 2011-04-20 | 河南科隆集团有限公司 | Tapping module for thin walled tube |
| CN102990108A (en) * | 2011-09-16 | 2013-03-27 | 江苏标新久保田工业有限公司 | Processing process of deep hole of nickel-based alloy petrochemical large-caliber thin-wall pipeline |
| CN102794607A (en) * | 2012-08-10 | 2012-11-28 | 西安天力金属复合材料有限公司 | Manufacturing method for large-scale tantalum/zirconium/titanium/steel compound plate |
| CN104439417A (en) * | 2014-11-28 | 2015-03-25 | 重庆速腾机械制造有限公司 | Drilling and positioning device for hollow pipes |
| CN105750843A (en) * | 2016-04-29 | 2016-07-13 | 中国原子能科学研究院 | Inner hole machining method for molybdenum alloy thin-walled long pipe |
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| CN107253018B (en) | 2019-05-28 |
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