CN204477516U - For the rolling reducer pipe of air conditioner refrigerating - Google Patents
For the rolling reducer pipe of air conditioner refrigerating Download PDFInfo
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- CN204477516U CN204477516U CN201520158567.1U CN201520158567U CN204477516U CN 204477516 U CN204477516 U CN 204477516U CN 201520158567 U CN201520158567 U CN 201520158567U CN 204477516 U CN204477516 U CN 204477516U
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- tube body
- pipe
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- wide diameter
- reducer pipe
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 66
- 238000005096 rolling process Methods 0.000 title claims abstract description 60
- 230000007704 transition Effects 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract description 5
- 239000010949 copper Substances 0.000 abstract description 5
- 238000000137 annealing Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Metal Extraction Processes (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The utility model relates to a kind of rolling reducer pipe for air conditioner refrigerating, particularly relates to and is applied in TP2 copper pipe at air conditioner refrigerating field connection set.This reducer pipe comprises: middle narrow-bore tube body, the transition portion I by reducing, symmetrical two ends wide diameter tube body I, and symmetrical two ends wide diameter tube body I adopts transition portion I to be connected with between middle narrow-bore tube body; Middle narrow-bore tube body be inside and outside wall smooth, pipe after rolling, two ends wide diameter tube body I is identical with metal or alloy pipe or expanding further.The utility model for raw material with metal or alloy pipe, adopts rolling equipment (three-roller planetary rolling mill, Pilger pipe mill, transverse rolling) to carry out intermittent type rolling, obtains the reducing rolling pipe of uniform wall thickness.The method can the large batch of reducer pipe of time processing, and manufacturing efficiency is high, can the pipe of rolling different size, and mill length can regulate arbitrarily, to meet the usage requirement of diverse location to reducer pipe.
Description
Technical field
The utility model relates to a kind of rolling reducer pipe for air conditioner refrigerating, particularly relates to and is applied in TP2 copper pipe at air conditioner refrigerating field connection set.
Background technique
Within 2013, China's non-ferrous metal industry profit falls 6.8% on a year-on-year basis, coloured processing industry faces huge challenge, client proposes further quality requirement to traditional non-ferrous metal light pipe, while the degree of finish needing manufacturer to ensure to manage inside and outside wall and dimensional accuracy, especially requires that tube wall thickness is thinning.
And control pipe fitting wall thickness reduction, for the position that diameter changes greatly, easily there is the defects such as cracking.Traditional reducer pipe production method mainly contains two kinds: one---expanding---annealing that is get the raw materials ready.The pipe wall thickness that this technique is got the raw materials ready is identical with pipe wall thickness in the middle of production tube, can produce the pipe of reducing.But current producer, in order to cost-saving, requires thinning to the pipe wall thickness of intermediate portion.Adopt this technique, when tubing change in radius is larger, two ends pipe wall thickness reduction serious (wall thickness change is more than 20%), is difficult to the wall thickness requirement meeting producer.------expanding---annealing of drawing that two are, get the raw materials ready.In the middle of the pipe wall ratio production tube that this technique is got the raw materials ready, pipe wall thickness is slightly thick, makes intermediate portion pipe wall thickness reduction, and then carry out expanding to pipe two ends by drawing process, ensures that wall thickness change is in tolerance range.But this production efficiency is low, drawing controls accurate not, also will further investigate further drawing procedure.In addition, reducer pipe matches also to have can not meet usage requirement part in structure, shape and size.
Model utility content
For the defect existed in traditional reducer pipe, the purpose of this utility model is to provide a kind of rolling reducer pipe for air conditioner refrigerating, to meet the usage requirement of diverse location to reducer pipe.
The technical solution of the utility model is:
A kind of rolling reducer pipe for air conditioner refrigerating, this reducer pipe comprises: middle narrow-bore tube body, the transition portion I by reducing, symmetrical two ends wide diameter tube body I, and symmetrical two ends wide diameter tube body I adopts transition portion I to be connected with between middle narrow-bore tube body; Middle narrow-bore tube body be inside and outside wall smooth, pipe after rolling, two ends wide diameter tube body I is identical with metal or alloy pipe or expanding further.
The described rolling reducer pipe for air conditioner refrigerating, wide diameter tube body I external diameter of reducer pipe is 1.1 times of narrow-bore tube body diameter to 10 times, and wide diameter tube body I external diameter is at 10 ~ 50mm, and narrow-bore tube body diameter is at 5 ~ 35mm.
The described rolling reducer pipe for air conditioner refrigerating, in the middle of reducer pipe, the wall thickness of narrow-bore tube body is constant or thinning, and maximum Reducing thickness is 50% of original pipe wall thickness; The length of reducer pipe two ends wide diameter tube body I is at 100 ~ 1000mm, and the length of middle narrow-bore tube body is unrestricted.
The described rolling reducer pipe for air conditioner refrigerating, this reducer pipe comprises: middle narrow-bore tube body, the transition portion I by reducing, symmetrical wide diameter tube body I, the transition portion II by reducing, symmetrical two ends wide diameter tube body II, adopt transition portion I to be connected between symmetrical wide diameter tube body I with middle narrow-bore tube body, between symmetrical wide diameter tube body I and symmetrical two ends wide diameter tube body II, adopt transition portion II to be connected; Middle narrow-bore tube body, symmetrical wide diameter tube body I be inside and outside wall smooth, pipe after rolling, two ends wide diameter tube body II is identical with metal or alloy pipe or expanding further.
The described rolling reducer pipe for air conditioner refrigerating, the wide diameter tube body I of reducer pipe, wide diameter tube body II external diameter are 1.1 times of narrow-bore tube body diameter to 10 times, and wide diameter tube body I, wide diameter tube body II external diameter are at 10 ~ 50mm, and narrow-bore tube body diameter is at 5 ~ 35mm.
The described rolling reducer pipe for air conditioner refrigerating, in the middle of reducer pipe, the wall thickness of narrow-bore tube body is constant or thinning, and maximum Reducing thickness is 50% of original pipe wall thickness; The length of reducer pipe wide diameter tube body I, wide diameter tube body II is at 100 ~ 1000mm, and the length of middle narrow-bore tube body is unrestricted.
Advantage of the present utility model and beneficial effect are:
1, the utility model reducer pipe is a kind of linking body structure pipeline, although each section of caliber and wall thickness are not etc., work efficiency is high.This reducer pipe is soft state pipe, has very strong non-deformability, is very beneficial for the plastic workings such as follow-up bend pipe, enlarging, bellows annular knurl, can meets the usage requirement of diverse location to reducer pipe.
2, the production method of the utility model reducer pipe comprises: get the raw materials ready, and---rolling (three-roller planetary rolling mill, Pilger pipe mill, transverse rolling)---expanding (usually can omit)---is annealed, its manufacturing efficiency is high, directly can be rolled undergauge to the pipe of different size, mill length can regulate arbitrarily.
3, the pipe external diameter of the utility model reducer pipe is identical with finished product pipe fitting or slightly thick, and by roll, carry out tube reducing subtract wall to pipe intermediate portion, pipe two ends are indeformable or carry out expanding.
Accompanying drawing explanation
Fig. 1 is an example structure schematic diagram of the utility model reducer pipe.
Fig. 2 is embodiment's cross-sectional schematic of the utility model reducer pipe.
Fig. 3 is another example structure schematic diagram of the utility model reducer pipe.
Fig. 4 is another embodiment's cross-sectional schematic of the utility model reducer pipe.
In figure, 1, narrow-bore tube body; 2, transition portion I; 3, wide diameter tube body I; 4, transition portion II; 5, wide diameter tube body II.
Embodiment
In a specific embodiment, the production method of the utility model reducer pipe, concrete steps are as follows:
1. metal or alloy pipe is got out;
2. metal or alloy pipe to be nipped three-roller planetary rolling mill, rolling equipment (three-roller planetary rolling mill, Pilger pipe mill, transverse rolling) is utilized to carry out intermittent type rolling, in the operation of rolling, nitrogen protection is carried out to pipe inner and outer surface, obtain that inside and outside wall is smooth, the reducing rolling pipe of uniform wall thickness;
3. by the sawing of reducing rolling pipe, obtain the reducer pipe in wide footpath, two ends, middle narrow footpath, two ends external diameter is large, and intermediate outer is little.
Step 1. in, metal or alloy pipe is widely applicable, can be TP2 copper, TU copper or Al and Alalloy pipe, also can be other metallic material pipe.
Step 2. in, through rolling equipment (three-roller planetary rolling mill, Pilger pipe mill, transverse rolling) rolling processing after, rolling section is narrow-bore tube base, and non-rolling section is wide diameter tube base.Wherein, the concrete technology parameter of intermittent type rolling is as follows: mill speed 0.5 ~ 1m/s; Rolling temperature room temperature.
Step 3. in, the wide diameter tube body diameter of reducer pipe is 1.1 times of narrow-bore tube body diameter to 10 times, and wide diameter tube body diameter is at 10 ~ 50mm, and narrow-bore tube body diameter is at 5 ~ 35mm.In the middle of reducer pipe, the wall thickness of narrow-bore tube body can be constant or thinning, and maximum Reducing thickness is 50% of original pipe wall thickness.The length of reducer pipe two ends wide diameter tube body is at 100 ~ 1000mm, and the length of middle narrow-bore tube body is unrestricted.The annealing temperature of reducer pipe between 450 DEG C ~ 600 DEG C, holding time 0.5 ~ 1 hour.
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment 1
As Figure 1-Figure 2, the reducer pipe adopting the utility model production method to obtain mainly comprises: middle narrow-bore tube body 1, the transition portion I 2 by reducing, symmetrical two ends wide diameter tube body I 3, symmetrical two ends wide diameter tube body I 3 adopts transition portion I 2 to be connected with between middle narrow-bore tube body 1.Described middle narrow-bore tube body 1 be inside and outside wall smooth, pipe after rolling, two ends wide diameter tube body I 3 can be identical or expanding further with metal or alloy pipe (female pipe).
The reducer pipe that the present embodiment can be used as the connection sets such as air conditioner refrigerating field uses, female pipe is the red copper pipe of Φ 30mm, after three-roller planetary rolling mill rolling: middle narrow diameter section divides caliber to become Φ 20mm, length 4000mm, wall thickness reduction amount is 15% of original pipe wall thickness; Two ends wide diameter part divides caliber constant, and length becomes 700mm, and wall thickness is constant.The annealing temperature of reducer pipe between 500 DEG C, holding time 1 hour.
This reducer pipe is a kind of linking body structure pipeline, although each section of caliber and wall thickness are not etc., work efficiency is high.This reducer pipe is soft state pipe, has very strong non-deformability, is very beneficial for the plastic workings such as follow-up bend pipe, enlarging, bellows annular knurl.
Embodiment 2
As Figure 3-Figure 4, the reducer pipe adopting the utility model production method to obtain mainly comprises: middle narrow-bore tube body 1, the transition portion I 2 by reducing, symmetrical wide diameter tube body I 3, the transition portion II 4 by reducing, symmetrical two ends wide diameter tube body II 5, adopt transition portion I 2 to be connected between symmetrical wide diameter tube body I 3 with middle narrow-bore tube body 1, between symmetrical wide diameter tube body I 3 and symmetrical two ends wide diameter tube body II 5, adopt transition portion II 4 to be connected.Described middle narrow-bore tube body 1, symmetrical wide diameter tube body I 3 be inside and outside wall smooth, pipe after rolling, two ends wide diameter tube body II 5 can be identical or expanding further with metal or alloy pipe (female pipe).
The reducer pipe that the present embodiment can be used as the connection sets such as air conditioner refrigerating field uses, female pipe is the aluminum pipe base of Φ 35mm, after three-roller planetary rolling mill rolling: middle narrow diameter section divides caliber to become Φ 15mm, length 3000mm wall thickness reduction amount is 20% of original pipe wall thickness; Symmetrical wide diameter tube body I caliber becomes Φ 25mm, and length is 1000mm, and wall thickness is constant; Two ends wide diameter tube body II caliber is constant, and length is 500mm, and wall thickness is constant.The annealing temperature of reducer pipe between 600 DEG C, holding time 0.5 hour.
This reducer pipe is a kind of linking body structure pipeline, although each section of caliber and wall thickness are not etc., work efficiency is high.This reducer pipe is soft state pipe, has very strong non-deformability, is very beneficial for the plastic workings such as follow-up bend pipe, enlarging, bellows annular knurl.
Embodiment's result shows, the utility model with metal or alloy pipe for raw material, rolling equipment (three-roller planetary rolling mill, Pilger pipe mill, transverse rolling) is adopted to carry out intermittent type rolling, strict control pipe wall thickness, mill speed, rolling temperature, obtain the reducing rolling pipe of uniform wall thickness, can the large batch of reducer pipe of time processing, manufacturing efficiency is high, can the pipe of rolling different size, mill length can regulate arbitrarily.
Claims (6)
1. the rolling reducer pipe for air conditioner refrigerating, it is characterized in that, this reducer pipe comprises: middle narrow-bore tube body, the transition portion I by reducing, symmetrical two ends wide diameter tube body I, and symmetrical two ends wide diameter tube body I adopts transition portion I to be connected with between middle narrow-bore tube body; Middle narrow-bore tube body be inside and outside wall smooth, pipe after rolling, two ends wide diameter tube body I is identical with metal or alloy pipe or expanding further.
2. according to the rolling reducer pipe for air conditioner refrigerating according to claim 1, it is characterized in that, wide diameter tube body I external diameter of reducer pipe is 1.1 times of narrow-bore tube body diameter to 10 times, and wide diameter tube body I external diameter is at 10 ~ 50mm, and narrow-bore tube body diameter is at 5 ~ 35mm.
3. according to the rolling reducer pipe for air conditioner refrigerating according to claim 1, it is characterized in that, in the middle of reducer pipe, the wall thickness of narrow-bore tube body is constant or thinning, and maximum Reducing thickness is 50% of original pipe wall thickness; The length of reducer pipe two ends wide diameter tube body I is at 100 ~ 1000mm, and the length of middle narrow-bore tube body is unrestricted.
4. according to the rolling reducer pipe for air conditioner refrigerating according to claim 1, it is characterized in that, this reducer pipe comprises: middle narrow-bore tube body, the transition portion I by reducing, symmetrical wide diameter tube body I, the transition portion II by reducing, symmetrical two ends wide diameter tube body II, adopt transition portion I to be connected between symmetrical wide diameter tube body I with middle narrow-bore tube body, between symmetrical wide diameter tube body I and symmetrical two ends wide diameter tube body II, adopt transition portion II to be connected; Middle narrow-bore tube body, symmetrical wide diameter tube body I be inside and outside wall smooth, pipe after rolling, two ends wide diameter tube body II is identical with metal or alloy pipe or expanding further.
5. according to the rolling reducer pipe for air conditioner refrigerating according to claim 4, it is characterized in that, the wide diameter tube body I of reducer pipe, wide diameter tube body II external diameter are 1.1 times of narrow-bore tube body diameter to 10 times, and wide diameter tube body I, wide diameter tube body II external diameter are at 10 ~ 50mm, and narrow-bore tube body diameter is at 5 ~ 35mm.
6. according to the rolling reducer pipe for air conditioner refrigerating according to claim 4, it is characterized in that, in the middle of reducer pipe, the wall thickness of narrow-bore tube body is constant or thinning, and maximum Reducing thickness is 50% of original pipe wall thickness; The length of reducer pipe wide diameter tube body I, wide diameter tube body II is at 100 ~ 1000mm, and the length of middle narrow-bore tube body is unrestricted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520158567.1U CN204477516U (en) | 2015-03-19 | 2015-03-19 | For the rolling reducer pipe of air conditioner refrigerating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520158567.1U CN204477516U (en) | 2015-03-19 | 2015-03-19 | For the rolling reducer pipe of air conditioner refrigerating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477516U true CN204477516U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520158567.1U Expired - Fee Related CN204477516U (en) | 2015-03-19 | 2015-03-19 | For the rolling reducer pipe of air conditioner refrigerating |
Country Status (1)
| Country | Link |
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| CN (1) | CN204477516U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423005A (en) * | 2015-12-18 | 2016-03-23 | 孝感华越机电科技有限公司 | Metal tube of metal splitter |
| CN112325049A (en) * | 2020-11-30 | 2021-02-05 | 俞立伟 | Composite sewer pipe |
| CN113617875A (en) * | 2021-08-10 | 2021-11-09 | 宝银特种钢管有限公司 | Manufacturing method of high-precision oval reducer |
-
2015
- 2015-03-19 CN CN201520158567.1U patent/CN204477516U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423005A (en) * | 2015-12-18 | 2016-03-23 | 孝感华越机电科技有限公司 | Metal tube of metal splitter |
| CN112325049A (en) * | 2020-11-30 | 2021-02-05 | 俞立伟 | Composite sewer pipe |
| CN113617875A (en) * | 2021-08-10 | 2021-11-09 | 宝银特种钢管有限公司 | Manufacturing method of high-precision oval reducer |
| CN113617875B (en) * | 2021-08-10 | 2022-07-29 | 宝银特种钢管有限公司 | Manufacturing method of high-precision oval reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20170319 |