CN100546891C - Weld-little, robust refrigerated container bottom board - Google Patents
Weld-little, robust refrigerated container bottom board Download PDFInfo
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- CN100546891C CN100546891C CNB200810074281XA CN200810074281A CN100546891C CN 100546891 C CN100546891 C CN 100546891C CN B200810074281X A CNB200810074281X A CN B200810074281XA CN 200810074281 A CN200810074281 A CN 200810074281A CN 100546891 C CN100546891 C CN 100546891C
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Abstract
The invention discloses a kind of Weld-little, robust refrigerated container bottom board, belong to the technical field of the assembly of refrigerated container.Described Weld-little, robust refrigerated container bottom board, comprise T floor (1), heat-insulation layer (2), waveshape floor plate (3), heat-insulation layer (2) is located between T floor (1) and the waveshape floor plate (3), described T floor (1) is welded by at least three blocks of T slot members (11), T floor (1) is the bonding pad from the interval of base plate center line 140mm～345mm with apart from the interval beyond the base plate center line 613mm, respectively is provided with a weld seam (12) at two in apart from the interval of base plate center line 140mm～345mm.The Position Design of weld seam of the present invention is avoided the wheelmark zone of fork truck, avoided the elastic deformation zone of goods self simultaneously to the maximum of the pressure formation of base plate, reduce the pressure that weld seam stands, improved the integral rigidity of base plate, increase the refrigerated container load-carrying capacity, reduce the weld cracking probability, more sturdy and durable.
Description
Technical field
The present invention relates to the assembly of refrigerated container, relate in particular to a kind of Weld-little, robust refrigerated container bottom board.
Background technology
Refrigerated container is a kind of freight container that has the international standarkdization of refrigerating plant, and the intensity of its project organization wants strictness to follow ISO Standard 1496 standards.Refrigerated container is applied to the transportation of ocean or land route perishable freight, the structure of this container bottom board as shown in Figure 1, it comprises T floor 5, heat-insulation layer 6, waveshape floor plate 7, bottom side beams 8, described T floor 5 and be welded on the bottom side beams 8 with the both sides of the waveshape floor plate 7 of gaining in strength, after T floor 5 and waveshape floor plate 7 both middle foaming machine injecting frothing materials by a kind of special use make it finish chemical reaction, generated the heat-insulation layer 6 of polyurethane foam material, thereby in conjunction with forming the bottom construction that can bear the refrigerated container of big load.
The T shape projection that it is T shape that the T floor upper surface is provided with a plurality of cross sections longitudinally, it is to be formed by the aluminium section bar extruding, because the container bottom board area is than restriction big and that be subjected to the existing processes level, the T floor can not be made by an aluminium section bar, generally be vertically to be welded by a plurality of T slot members to combine, the position of its welding is the lower surface on the T floor.Because aluminum alloy weld seam intensity is lower, the weld penetration that may occur in welding fragility that aluminum alloy weld seam zone produces and the production process is bad all to have brought excessive risk to T floor weldquality, in addition in the molten bath of weld seam, the element of aluminum alloy such as Mg etc. are evaporated in welding process easily, scaling loss, thereby changed the aluminum alloy component of weld seam, caused aluminum alloy joint intensity lower.Therefore, the position that the weld seam on T floor is in the moderate finite deformation amount for a long time can produce the metal fatigue of commissure quickly, until cracking.
The refrigerated container of international standarkdization is according to the different length size such as the 20FT (foot) of casing, and 40FT, 40FT.Hc are divided into different models, and the refrigerated container that global simultaneously refrigerated container manufacturer is produced all tends to normalisation.T floor 5 designs of the 20FT refrigerated container of producing at present as shown in Figure 1, it is combined by 51 welding of 7 T slot members, adopts 6 weld seams 52 to weld, the position distribution of weld seam 52 as shown in the figure, the position of weld seam 52 almost is to be evenly distributed on the T floor.40FT、40FT。T floor 5 design of HC refrigerated container as shown in Figure 2, its major part is combined by 51 welding of 9 T slot members, adopts 8 weld seams 52 to weld, the position distribution of weld seam 52 as shown in the figure, the position of weld seam 52 also almost is to be evenly distributed on the T floor.Another uses 40FT, 40FT comparatively widely.T floor 5 design of HC refrigerated container as shown in Figure 3, it waits T slot member 51 welding of width to combine by 7, adopts 6 weld seams 52 to weld, the position distribution of weld seam 52 as shown in the figure, the position of weld seam 52 is to be evenly distributed on the T floor.
Heat-insulation layer 6 below the T floor 5 of refrigerated container is made by low-density expanded material, in fork truck enters refrigerated container during operation, the truck wheels spreading is on the T floor, the T floor produces serious sagging phenomenon at the centre-of-pressure position of tire, the weld seam on existing T floor just in time is in this zone of sinking, the floor will produce a kind of more serious deformation, the long-term use meeting causes the cracking of weld seam.
When refrigerated container is completely freighted thing, the T floor also can produce sagging phenomenon under the action of gravity at cargo load center, near its Central Line district deflection maximum, refrigerated container is in whole seeervice cycle case simultaneously, and its Central Line district is to use between the most frequent operating area.And existing T floor is being provided with weld seam near centerline, does not consider the influence of the action of gravity at cargo load center to welded seam, and in fact this central area can produce a kind of more serious deformation, and the long-term use meeting causes the cracking of weld seam.
Because the cracking of weld seam, condensed water can be gone in the foaming body by Bu Duan Seepage and since temperature constantly change ponding frozen, dissolve into water again after freezing.In the ice water circulation process, its volume constantly changes, such period of change is circulation repeatedly constantly, the foam organizational structure of the closed pore of heat-insulation layer constantly suffers damage, in use quicken impaired under the action of gravity of goods especially, make ponding more and more, make heat-insulation layer produce the separation phenomenon with the T floor, and separation phenomenon constantly enlarges.All there is the problem of bigger stress and cleanliness level deficiency in the zone of this external welding, all can influence the cementation power of adhesive agent.Make and the easier appearance of separation phenomenon on heat-insulation layer generation and T floor finally make refrigerated container lose service function.
Summary of the invention
The object of the invention is to provide that a kind of welded seam is few, integral rigidity is high, load-carrying capacity is big, sturdy and durable, adopt the theoretical design of correct scientific design position while welding, significantly reduce the Weld-little of weld cracking probability, robust refrigerated container bottom board effectively.
For solving the problems of the technologies described above, Weld-little of the present invention, robust refrigerated container bottom board, comprise the T floor, heat-insulation layer, waveshape floor plate, described heat-insulation layer are located between T floor and the waveshape floor plate, and described T floor is welded by at least three blocks of T slot members, the T floor is the bonding pad from the interval of base plate center line 140mm～345mm with apart from the interval beyond the base plate center line 613mm, respectively is provided with a weld seam at two in apart from the interval of base plate center line 140mm～345mm.
The Position Design of refrigerated container T of the present invention ground plate welding seams is avoided fork truck as much as possible and adorn the wheelmark zone that the wheel that usually travels when driving goods is rolled in the refrigerated container case, avoid simultaneously the elastic deformation zone of goods self effectively to the maximum of the pressure formation of base plate, reduce the pressure that weld seam stands, improved the integral rigidity of whole base plate, increase the refrigerated container load-carrying capacity, reduce the weld cracking probability, make refrigerated container bottom board more sturdy and durable, prolong the service time of refrigerated container.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments, but do not constitute any limitation of the invention.
Fig. 1 is the structural representation of existing 20FT refrigerated container bottom board;
Fig. 2 is existing 40FT, the structural representation of 40FT.HC refrigerated container bottom board;
Fig. 3 is existing 40FT, another structural representation of 40FT.HC refrigerated container bottom board;
Fig. 4 is first kind of specific embodiment of 20FT refrigerated container bottom board of the present invention;
Fig. 5 is second kind of specific embodiment of 20FT refrigerated container bottom board of the present invention;
Fig. 6 is the third specific embodiment of 20FT refrigerated container bottom board of the present invention;
Fig. 7 is the 4th kind of specific embodiment of 20FT refrigerated container bottom board of the present invention;
Fig. 8 is the 5th kind of specific embodiment of 20FT refrigerated container bottom board of the present invention;
Fig. 9 is 40FT of the present invention, first kind of specific embodiment of 40FT.HC refrigerated container bottom board;
Figure 10 is 40FT of the present invention, second kind of specific embodiment of 40FT.HC refrigerated container bottom board;
Figure 11 is 40FT of the present invention, the third specific embodiment of 40FT.HC refrigerated container bottom board;
Figure 12 is 40FT of the present invention, the 4th kind of specific embodiment of 40FT.HC refrigerated container bottom board;
Figure 13 is 40FT of the present invention, the 5th kind of specific embodiment of 40FT.HC refrigerated container bottom board;
Figure 14 is 40FT of the present invention, the 6th kind of specific embodiment of 40FT.HC refrigerated container bottom board.
The specific embodiment
Consult Fig. 4 to shown in Figure 14, described Weld-little, robust refrigerated container bottom board comprise T floor 1, heat-insulation layer 2, waveshape floor plate 3, bottom side beams 4.T floor 1 and be welded on the bottom side beams 4 with the both sides of the waveshape floor plate 3 of gaining in strength, T floor 1 and waveshape floor plate 3 have generated polyurethane foam body heat-insulation layer 2 after the foaming machine injecting frothing materials by a kind of special use make it finish chemical reaction in the middle of both.Described T floor 1 is welded by at least three T slot members 11, described T slot member 11 is to be formed by the aluminium extruding, forming a plurality of cross-sectional planes on each T slot member 11 is the T slot of T shape, the base of T slot member 11 is welded to each other, choosing the T floor is the bonding pad from the interval of base plate center line 140mm～345mm with apart from the interval beyond the base plate center line 613mm, at least respectively have a weld seam 12 to be located in two intervals apart from base plate center line 140mm～345mm, T slot member 11 can be provided with its width and number according to the needs of weld seam 12 positions.
Described T floor 1 can be welded by five T slot members 11, and other two weld seams 12 are located at two respectively apart from the interval beyond the base plate center line 613mm.
Described T floor 1 can be welded by seven T slot members 11, and other four weld seams 12 are located at two apart from the interval beyond the base plate center line 613mm.
Consider the deviation that fork truck travels, above-mentioned weld seam 12 is located at respectively in two intervals apart from base plate center line 140mm～310mm.T floor 1 as described is welded by five T slot members 11, and then other two weld seams 12 are located at two respectively apart from the interval beyond the base plate center line 648mm.T floor 1 as described is welded by seven T slot members 11, and other four weld seams 12 are located at two apart from the interval beyond the base plate center line 648mm.
Enumerate specific embodiments more of the present invention below in conjunction with accompanying drawing.
Refrigerated container bottom board shown in Figure 4 is first kind of specific embodiment of 20FT specification, width is about 2250mm, the number of T slot member 11 is 5,44 T shape projectioies are generally arranged on the whole T floor, as shown in the figure, the T slot member 11 of central authorities has 8 T shape projectioies, and the T slot member 11 of both sides is respectively 17,1, and the position that only needs to guarantee weld seam 12 is located at apart from base plate center line 140mm～345mm interval and the position outer apart from base plate center line 613mm.
Refrigerated container bottom board shown in Figure 5 is second kind of specific embodiment of 20FT specification, width is about 2250mm, the number of T slot member 11 is 3,44 T shape projectioies are generally arranged on the whole T floor, as shown in the figure, the T slot member 11 of central authorities has 8 T shape projectioies, the T slot member 11 of both sides is respectively 18, the position that only needs to guarantee weld seam 12 is located at apart from base plate center line 140mm～345mm interval and the position outer apart from base plate center line 613mm, the minimum number of the T slot member of present embodiment, weld seam 12 is also minimum, also just drops to the harm of weld cracking and risk minimum.
Refrigerated container bottom board shown in Figure 6 is the third specific embodiment of 20FT specification, width is about 2250mm, the number of T slot member 11 is 5,44 T shape projectioies are generally arranged on the whole T floor, as shown in the figure, the T slot member 11 of central authorities has 8 T shape projectioies, and the T slot member 11 of both sides is respectively 13,5, and the position that only needs to guarantee weld seam 12 is located at apart from base plate center line 140mm～345mm interval and the position outer apart from base plate center line 613mm.
Refrigerated container bottom board shown in Figure 7 is the 4th a kind of specific embodiment of 20FT specification, width is about 2250mm, the number of T slot member 11 is 7,44 T shape projectioies are generally arranged on the whole T floor, as shown in the figure, the T slot member 11 of central authorities has 8 T shape projectioies, and the T slot member 11 of both sides is respectively 10,7,1, and the position that only needs to guarantee weld seam 12 is located at apart from base plate center line 140mm～345mm interval and the position outer apart from base plate center line 613mm.
Refrigerated container bottom board shown in Figure 8 is the 5th a kind of specific embodiment of 20FT specification, width is about 2250mm, the number of T slot member 11 is 5,44 T shape projectioies are generally arranged on the whole T floor, as shown in the figure, the T slot member 11 of central authorities has 8 T shape projectioies, and the T slot member 11 of both sides is respectively 10,8, and the position that only needs to guarantee weld seam 12 is located at apart from base plate center line 140mm～345mm interval and the position outer apart from base plate center line 613mm.
Refrigerated container bottom board shown in Figure 9 is first kind of specific embodiment of 40FT or 40FT.HC specification, width is about 2248mm, the number of T slot member 11 is 5,35 T shape projectioies are generally arranged on the whole T floor, weld seam 12 combined location as shown in the figure, the T slot member 11 of central authorities has 7 T shape projectioies, and the T slot member 11 of both sides is respectively 13,1, only need guarantee that weld seam is located at apart from base plate center line 140mm～345mm interval and the position outer apart from base plate center line 613mm.
Refrigerated container bottom board shown in Figure 10 is second kind of specific embodiment of 40FT or 40FT.HC specification, width is about 2248mm, the number of T slot member 11 is 3,35 T shape projectioies are generally arranged on the whole T floor, weld seam 12 is located at apart from base plate center line 140mm～345mm interval, the position of weld seam 12 as shown in the figure, the T slot member 11 of central authorities has 7 T shape projectioies, the T slot member 11 of both sides is respectively 14, the minimum number of the T slot member of present embodiment, weld seam 12 is also minimum, also just drops to the harm of weld cracking and risk minimum.
Refrigerated container bottom board shown in Figure 11 is the third specific embodiment of 40FT or 40FT.HC specification, width is about 2248mm, the number of T slot member 11 is 5,35 T shape projectioies are generally arranged on the whole T floor, weld seam 12 also is located at apart from base plate center line 140mm～345mm interval and the position outer apart from base plate center line 613mm, the position of weld seam 12 as shown in the figure, wherein each T slot member all is 7 T shape projectioies, width is identical, T slot member uniform specification is convenient to manufacture like this.
Refrigerated container bottom board shown in Figure 12 is the 4th a kind of specific embodiment of 40FT or 40FT.HC specification, width is about 2248mm, the number of T slot member 11 is 3,35 T shape projectioies are generally arranged on the whole T floor, the position of weld seam 12 also is located at apart from the position in base plate center line 140mm～345mm interval, the position of weld seam 12 as shown in the figure, the T slot member 11 of central authorities has 9 T shape projectioies, the T slot member 11 of both sides is respectively 13, the minimum number of the T slot member of present embodiment, weld seam 12 is also minimum, also just drops to the harm of weld cracking and risk minimum.
Figure 13 is 40FT of the present invention, the 5th kind of specific embodiment of 40FT.HC refrigerated container bottom board; Width is about 2248mm, the number of T slot member 11 is 7,35 T shape projectioies are generally arranged on the whole T floor, the position of weld seam 12 as shown in the figure, the T slot member 11 of central authorities has 7 T shape projectioies, the T slot member 11 of both sides is respectively 8,5,1, also is located at apart from base plate center line 140mm～345mm interval and the position outer apart from base plate center line 613mm.
Figure 14 is 40FT of the present invention, the 6th kind of specific embodiment of 40FT.HC refrigerated container bottom board; Width is about 2248mm, the number of T slot member 11 is 5,35 T shape projectioies are generally arranged on the whole T floor, the position of weld seam 12 as shown in the figure, the T slot member 11 of central authorities has 7 T shape projectioies, the T slot member 11 of both sides is respectively 8,6, also is located at apart from base plate center line 140mm～345mm interval and the position outer apart from base plate center line 613mm.
The present invention in the specific implementation, the width of the quantity of T shape projection and T slot member also has more array mode on the single T slot member, more than only enumerated some basic array modes.T slot member number of the present invention does not limit; be few more good more on the principle of design; only at least two position while weldings in the weld seam of the T slot component composition on need assurance T floor are in apart from refrigerated container bottom board line of centers 140mm～345mm interval; other weld seam also can be arranged on the position outer apart from base plate center line 613mm; just can reach purpose of the present invention, promptly belong to the protection domain of this patent.
The interval design-calculated of position while welding of the present invention is according to as follows:
Patent of the present invention has been founded the Position Design theory of the welded seam on following two T floors, for design provides correct scientific design theoretical foundation.
(1), the fork truck of handling goods wheel is rolled over center pressure band theory in the refrigerated container case
At present, by collecting the relevant fork truck manufacturer's in present various countries related standards, and in conjunction with actual use, the fork truck of learning 1 ton to 3.5 tons is the most frequently used various model fork trucks of operation in the present refrigerated container case, can represent most fork truck models that can be used for handling goods body in the refrigerated container case.The reference standard size of the wheelspan of 1 ton-3.5 tons general fork truck is: the scope of 890mm-1025mm.Case inside dimension according to the existing refrigerated container that uses, the wheelmark that travels commonly used in the fork truck turnover case, find by field analysis, under the overwhelming majority's situation, the operator of fork truck makes the refrigerated container side plate impaired for avoiding, causing unnecessary economic loss, all is to travel at middle position under the overwhelming majority's the situation when dress is driven goods in the fork truck inlet.Principle according to the mathematics probability distribution, setting fork truck all is certain rule to be arranged and travel certain wheelmark when lade, all be to drop in the interval of this setting under the center of pressure overwhelming majority's of its tire the situation, door by refrigerated container is held up to front end, and the section definition of the wheelmark that travels of fork truck is: the fork truck wheel is rolled over the center pressure band.T floor design in the refrigerated container of the present invention is gone up to formulate to roll on the center pressure band at wheel and be the design of no weld metal zone, avoids the pressure of tire to act on the weakest having again on the position while welding that welds fragility effectively when making the interior operation of fork truck inlet like this.
The relevant data design of implementing the design's patent is as follows:
The tyre width of general fork truck: 200mm
The wheelspan scope of general fork truck: 890mm---1025mm
One-sided fork truck wheel is rolled over center pressure band molded breadth W1:
W1＝200mm/2+(1025mm/2-890mm/2)+200mm/2
＝268mm
Wherein the fork truck wheel edge of rolling over the center pressure band outside apart from the distance L 1 of T floor line of centers for the maximum wheelspan of fork truck adds 1/2 tyre width, that is:
L1＝1025mm/2+200mm/2＝613mm
L1-W1=613mm-268mm=345mm again
Then fork truck wheel rolling center pressure band is positioned at the scope apart from base plate center line 345mm to 613mm.
(2), refrigerated container center maximum flexibility deforming zone theory
The center deflection on T floor was maximum when deep freezer was completely freighted thing, center in the whole seeervice cycle case of refrigerated container is to use between the most frequent operating area. and this is interval because under the action of gravity at cargo load center. and bigger elastic deformation amount produces very adverse influence to welded seam, therefore a maximum flexibility deforming zone is set, and in this maximum flexibility deforming zone, adopts weldless design.
According to situation during refrigerated container T floor load in the middle of the practical application, and consider the industrial capacity that to implement, the elastic deformation area that goods gravity causes during design construction refrigerated container T floor loading is a benchmark with Central Line, T floor, scope apart from both sides, Central Line 140mm is set at the maximum flexibility deforming zone, and adopts weldless design in this maximum flexibility deforming zone.
Two design theories in conjunction with this patent, and as can be known according to above-mentioned data, the weld seam of described T slot member welding should be positioned at apart from base plate center line 140mm～345mm interval and the position outer apart from base plate center line 613mm, and outer apart from base plate center line 613mm certainly position also can not be provided with weld seam.For ease of the unification of T slot member, weld seam is that the benchmark left-right symmetric distributes with the longitudinal centerline of refrigerated container.
The T floor in fork truck wheel is rolled over center pressure band interval with to be designed to not have weld seam be the most rational design in the interval of maximum flexibility deforming zone, promptly roll in the center pressure band and in the maximum flexibility deforming zone that goods gravity causes at the fork truck wheelmark wheel that usually travels, do not design weld seam, just can reduce to maximum likelihood the potential risk of weld cracking.This design can make the seeervice cycle of refrigerated container further prolong effectively, and has reduced maintenance cost widely.
Above-mentioned further improvement is a deviation of considering that forklift operator travels, roll at fork truck wheel on the size basis of theoretical Track width of center pressure band and increase the error width that forklift operator travels again, it is that the fork truck wheel is rolled over center pressure band each 35mm of both sides that the present invention sets the error width that forklift operator travels, and can certainly select to dwindle or enlarge according to actual conditions.The width W 2 that then designs fork truck wheel rolling center pressure band at last is:
W2＝35mm+268mm+35mm
＝338mm
The edge in the fork truck wheel rolling center pressure band outside apart from the distance L 2 of T floor line of centers is:
L2＝613mm+35mm＝648mm
L2-W2=648m-338mm=310mm again
Then fork truck wheel rolling center pressure band is positioned at the scope apart from base plate center line 310mm to 648mm.
According to above-mentioned data as can be known, as optimal way, described bonding pad is the interval of 1 base plate center line 140mm～310mm from the T floor and apart from the interval beyond the base plate center line 648mm, the weld seam of T slot member welding is positioned at apart from base plate center line 140mm～310mm interval and the position outer apart from base plate center line 648mm, certainly outer apart from base plate center line 648mm position also can not be provided with weld seam, for ease of the unification of T slot member 11, weld seam is that the benchmark left-right symmetric distributes with the longitudinal centerline of refrigerated container.
The design that the invention solves present T slot member weld seam is improper for the harm in service life of refrigerated container T floor, has reduced the quality risk of weld seam on the T floor of refrigerated container, drops to the influence of the factor of weld cracking minimum.The Position Design of butt welded seam of the present invention has been used correct science design method, according to the design of weld seam of the present invention, can reduce the quantity of T slot member, more directly, has more effectively reduced the quantity of weld seam, drops to the harm of weld cracking and risk minimum.
The present invention is according to described design theory; disclosed the principle of design of T slot member welded seam position and quantity; and design the welding array mode of various ways; the number of designing T on the width range of T slot member and the concrete T slot member again removes to satisfy the design goal of this patent; this T slot member belongs to the protection domain of this patent equally, promptly uses and produce the protection domain that relevant T slot member falls into this patent too.
The present invention similarly is applicable to all goods transport equipment; as: commercial dried food and nuts car; van cooler, superimposed trailer, dried food and nuts superimposed trailer, refrigerated semitrailer, extraordinary refrigerated container; as long as in fork truck that this patent is set forth wheel is rolled over the elastic deformation area's that center pressure band and central goods center of gravity cause range of sizes, not have the weld seam or the bonding seam of chemical combination that weld, all belong to protection scope of the present invention.
Claims (6)
1. a Weld-little, robust refrigerated container bottom board, comprise T floor (1), heat-insulation layer (2), waveshape floor plate (3), described heat-insulation layer (2) is located between T floor (1) and the waveshape floor plate (3), it is characterized in that: described T floor (1) is welded by at least three blocks of T slot members (11), T floor (1) is the bonding pad from the interval of base plate center line 140mm～345mm with apart from the interval beyond the base plate center line 613mm, respectively is provided with a weld seam (12) at two in apart from the interval of base plate center line 140mm～345mm.
2. Weld-little according to claim 1, robust refrigerated container bottom board, it is characterized in that: described T floor (1) is welded by five blocks of T slot members (11), and other two weld seams (12) are located at two apart from the interval beyond the base plate center line 613mm.
3. Weld-little according to claim 1, robust refrigerated container bottom board, it is characterized in that: described T floor (1) is welded by seven blocks of T slot members (11), and other four weld seams (12) are located at two apart from the interval beyond the base plate center line 613mm.
4. Weld-little according to claim 1, robust refrigerated container bottom board is characterized in that: described bonding pad is from the interval of T floor (1) base plate center line 140mm～310mm with apart from the interval beyond the base plate center line 648mm.
5. Weld-little according to claim 4, robust refrigerated container bottom board, it is characterized in that: described T floor (1) is welded by five blocks of T slot members (11), and other two weld seams (12) are located at two apart from the interval beyond the base plate center line 648mm.
6. Weld-little according to claim 4, robust refrigerated container bottom board, it is characterized in that: described T floor (1) is welded by seven blocks of T slot members (11), and other four weld seams (12) are located at two apart from the interval beyond the base plate center line 648mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200810074281XA CN100546891C (en) | 2007-05-24 | 2008-02-03 | Weld-little, robust refrigerated container bottom board |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720051854.8 | 2007-05-24 | ||
| CN200720051854 | 2007-05-24 | ||
| CNB200810074281XA CN100546891C (en) | 2007-05-24 | 2008-02-03 | Weld-little, robust refrigerated container bottom board |
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| Publication Number | Publication Date |
|---|---|
| CN101229872A CN101229872A (en) | 2008-07-30 |
| CN100546891C true CN100546891C (en) | 2009-10-07 |
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| CNB200810074281XA Expired - Fee Related CN100546891C (en) | 2007-05-24 | 2008-02-03 | Weld-little, robust refrigerated container bottom board |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109835363A (en) * | 2017-11-28 | 2019-06-04 | 中车齐齐哈尔车辆有限公司 | Insulation construction, the manufacturing method of insulation construction, chassis and refrigerator car |
| CN112222578A (en) * | 2020-09-24 | 2021-01-15 | 辽宁忠旺特种车辆制造有限公司 | Aluminum alloy container bottom plate assembly welding structure and process |
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