CN205674601U - A kind of CNG automobile gas tank bimetallic transit joint - Google Patents
A kind of CNG automobile gas tank bimetallic transit joint Download PDFInfo
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- CN205674601U CN205674601U CN201620585235.6U CN201620585235U CN205674601U CN 205674601 U CN205674601 U CN 205674601U CN 201620585235 U CN201620585235 U CN 201620585235U CN 205674601 U CN205674601 U CN 205674601U
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Abstract
The utility model relates to a kind of CNG automobile gas tank bimetallic transit joint, can effectively solve single material metal joint low temperature resistant, high pressure resistant, the problem of persistence difference, technical scheme is, including joint body, joint body is annular, joint body is by stainless steel layer from bottom to top, titanium layer and aluminium lamination are closely linked the multi-layer compound structure constituting by explosive welding, the utility model novel structure is unique, use aluminium, titanium, stainless steel is formed by explosion welding technique and combines closely, interface bond strength is very high, low pressure can be born, high pressure, sealing is good, and use period ratio single material metal joint long, largely save use cost, easy to use, effect is good, there is good Social and economic benef@.
Description
Technical field
The utility model relates to bimetallic transit joint, particularly a kind of CNG automobile gas tank bimetallic transit joint.
Background technology
At present, there is the area of gas distributing system condition both at home and abroad all to develop based on CNG automobile.CNG automobile is mainly by first
The natural gas that alkane is constituted is similar in the gas cylinder of fuel tank in being stored in car under the pressure of about 25Mpa, is used as motor vehicle fuel.
CNG automobile can well be carried through bus station from 0.3 ~ 0.8MPa low pressure natural gas, is converted to the natural of 25Mpa through compressor
Gas, it is necessary to be well connected between gas cylinder with conduit.And automobile steel bottle height is calmed the anger and is mixed through combustion gas after decompressor decompression
Clutch supplies to engine.Metal transfer joint serves immeasurable effect at this.Metal transfer joint typically requires symbol
Close following requirement: the 1st, low temperature resistant, high pressure resistant, it is adaptable to CNG automobile;2nd, seal persistently reliable;3rd, adapt to what load frequency became
Working condition.But the transit joint of single material, is not well positioned to meet the good carrying to gas for the CNG automobile.
Domestic existing metal transfer joint material is steel joint, stainless steel joint, aluminum joint etc..Single transition
Joint is all relatively weak to low temperature resistant, high pressure resistant, persistence etc..And metal transfer joint is as the mistake of CNG automobile gas transport
Cross joint, be widely used more and more.The continuous renewal of automobile device, more promotes the performance of metal transfer joint not
Disconnected reform and innovation.
Content of the invention
For above-mentioned situation, for overcoming the defect of prior art, the purpose of the utility model is just to provide a kind of CNG automobile
Gas tank bimetallic transit joint, can effectively solve that single material metal joint is low temperature resistant, high pressure resistant, the problem of persistence difference.
The technical scheme that the utility model solves is, a kind of CNG automobile gas tank bimetallic transit joint, including joint is originally
Body, joint body is annular, it is characterised in that joint body is to be passed through by stainless steel layer from bottom to top, titanium layer and aluminium lamination
Explosive welding be closely linked constitute multi-layer compound structure.
The thickness of described stainless steel layer is 10mm, and the thickness of titanium layer is 1.2-1.5mm, and the thickness of aluminium lamination is 11-15mm.
The utility model novel structure is unique, uses aluminium, titanium, stainless steel to be formed by explosion welding technique and combines closely,
Interface bond strength is very high, can bear low pressure, high pressure, and sealing is good, and uses period ratio single material metal joint
Long, largely save use cost, easy to use, effect is good, has good Social and economic benef@.
Brief description
Fig. 1 is top view of the present utility model.
Fig. 2 is that the A-A of the utility model Fig. 1 is to sectional view.
Fig. 3 is the schematic diagram of the utility model explosive welding structure.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Being given by Fig. 1-3, the utility model includes joint body 1, and joint body 1 is annular, and joint body is by certainly
Lower and on stainless steel layer 1a, titanium layer 1b and aluminium lamination 1c be closely linked by explosive welding the MULTILAYER COMPOSITE knot constituting
Structure.
For ensureing using effect, the thickness of described stainless steel layer 1a is 10mm, and the thickness of titanium layer 1b is 1.2-1.5mm,
The thickness of aluminium lamination 1c is 11-15mm；Described stainless steel layer 1a uses austenitic stainless steel to make, as model be the 304th, 316L,
304L, the corrosion resistant plate etc. of 321, described titanium layer uses commercially available titanium plate to support, and described aluminium lamination 1c uses commercially available aluminium sheet
Make, such as the aluminium sheet that model is 1050；
Described joint body 1 is by the integrative-structure constituting after the welding of explosive welding structural blast, described blast weldering
Access node structure includes the substrate that stainless steel layer 1a is constituted, the rebound that titanium layer 1b is constituted and the cladding plate that aluminium lamination 1c is constituted, substrate, transition
Plate, cladding plate are that parallel spaced-apart is arranged, and the upper surface of substrate is just right with the lower surface of rebound, and the two spacing is 6mm, rebound
Upper surface is just right with the lower surface of cladding plate, and the two spacing is 6-10mm, and the upper surface of cladding plate is coated with explosive layer 2, explosive layer 2
Thickness is 32-42mm；
Side inside and outside described substrate and rebound is along flushing, and the side inside and outside cladding plate is along beyond substrate and transition
Side edge inside and outside plate；Side inside and outside described cladding plate along beyond the side inside and outside substrate and rebound along 200mm.
The utility model uses the high-quality blast of aluminium, titanium, three kinds of different metal materials of stainless steel to combine, wherein stainless steel
Layer is cheap and plasticity good, has certain ability to bear to low-temp low-pressure.Use titanium plate to do aluminium and stainless steel combines
Transition zone, make aluminium and stainless steel well be combined together, greatly enhance blast bond quality, play a mistake
Cross the effect of buffering, both ensure that its plasticity as joint, there is again certain hardness.
The present utility model is used aluminium, titanium, stainless steel to be formed by explosion welding technique and combines closely, and contact surface is with ripple
Shape wave is well connected, and the interface bond strength of this form is very high, can produce the bimetallic mistake that additive method cannot produce
Cross joint.And the bimetallic transit joint made can bear low pressure, high pressure, sealing is good and uses period ratio single
Material metal joint length is a lot, largely saves use cost.
In explosive welding structure of the present utility model, by increase cartridge bag area, cladding plate relative to substrate, its length and width chi
Very little each increase 200mm, reduces the impact on compound plate borderline region for the explosion time reflected tensile stress, thus controls boundary effect, quick-fried
Fried welding cuts after completing.
The utility model have employed the mode of explosive welding of double-level-metal plate, make particular characteristic titanium plate in centre as
Transition zone, carries out an efficiently quick explosive welding and completes, and explosion velocity of explosive controls at below 2000m/s, between stainless steel and titanium plate
Gap is 6mm, and titanium plate and aluminium inter-plate gap are 6-10mm, explosive coefficient 22-28kg/m2.When being placed in the explosive quilt on cladding plate
After cap sensitive, the blast chemical reaction of explosive through acceleration after a while just with the urgency of the propelling of detonation wave and explosion product
Speed expands, its kinetic energy pusher's compound plate phase-plate high-speed motion producing.Finally combined by strong plastic deformation between base, cladding plate
Together.
Structure of the present utility model is by bad for the packing of homogenous material of the prior art, temperature capacity difference etc.
Shortcoming is improved, and the utility model uses the method for explosive welding, and by being combined together of above-mentioned three kinds of metal in close, stability is good
Good, well solve CNG automobile natural gas transmission problem, functional at a temperature of-162 DEG C, and design ingenious, be easy to
Implementing, safe and reliable, efficiently practical again, easy to use, effect is good, has good Social and economic benef@.
Claims (5)
1. a CNG automobile gas tank bimetallic transit joint, including joint body (1), joint body (1) is annular, its
Being characterised by, joint body is tight by explosive welding by stainless steel layer (1a) from bottom to top, titanium layer (1b) and aluminium lamination (1c)
The close multi-layer compound structure being combined together composition.
2. CNG automobile gas tank bimetallic transit joint according to claim 1, it is characterised in that described stainless steel
The thickness of layer (1a) is 10mm, and the thickness of titanium layer (1b) is 1.2-1.5mm, and the thickness of aluminium lamination (1c) is 11-15mm.
3. CNG automobile gas tank bimetallic transit joint according to claim 1, it is characterised in that described joint is originally
Body (1) is that described explosive welding structure includes stainless steel layer by the integrative-structure constituting after the welding of explosive welding structural blast
(1a) cladding plate that the substrate constituting, the rebound that titanium layer (1b) is constituted and aluminium lamination (1c) are constituted, substrate, rebound, cladding plate are in flat
The alternate setting of row, the upper surface of substrate is just right with the lower surface of rebound, and the two spacing is 6mm, the upper surface of rebound with cover
The lower surface of plate is just right, and the two spacing is 6-10mm, and the upper surface of cladding plate is coated with explosive layer (2), and the thickness of explosive layer (2) is
32-42mm。
4. CNG automobile gas tank bimetallic transit joint according to claim 3, it is characterised in that described substrate and
Side inside and outside rebound is along flushing, and the side inside and outside cladding plate is along beyond the side edge inside and outside substrate and rebound.
5. CNG automobile gas tank bimetallic transit joint according to claim 4, it is characterised in that in described cladding plate
The side of outer both sides along beyond the side inside and outside substrate and rebound along 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620585235.6U CN205674601U (en) | 2016-06-16 | 2016-06-16 | A kind of CNG automobile gas tank bimetallic transit joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620585235.6U CN205674601U (en) | 2016-06-16 | 2016-06-16 | A kind of CNG automobile gas tank bimetallic transit joint |
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| Publication Number | Publication Date |
|---|---|
| CN205674601U true CN205674601U (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620585235.6U Active CN205674601U (en) | 2016-06-16 | 2016-06-16 | A kind of CNG automobile gas tank bimetallic transit joint |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269959A (en) * | 2018-01-30 | 2018-07-10 | 郑州宇光复合材料有限公司 | A kind of electric automobile power battery copper aluminium attachment device |
| CN111940887A (en) * | 2020-07-10 | 2020-11-17 | 湖北金兰特种金属材料有限公司 | Explosion welding method for annular composite structure |
-
2016
- 2016-06-16 CN CN201620585235.6U patent/CN205674601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269959A (en) * | 2018-01-30 | 2018-07-10 | 郑州宇光复合材料有限公司 | A kind of electric automobile power battery copper aluminium attachment device |
| CN111940887A (en) * | 2020-07-10 | 2020-11-17 | 湖北金兰特种金属材料有限公司 | Explosion welding method for annular composite structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |