CN104074737A - S pipe, manufacturing method thereof and concrete pumping device - Google Patents
S pipe, manufacturing method thereof and concrete pumping device Download PDFInfo
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- CN104074737A CN104074737A CN201410289050.6A CN201410289050A CN104074737A CN 104074737 A CN104074737 A CN 104074737A CN 201410289050 A CN201410289050 A CN 201410289050A CN 104074737 A CN104074737 A CN 104074737A
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- arc plate
- circular arc
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- tube layer
- concrete pumping
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Abstract
The invention provides an S pipe used for a concrete pumping device. The S pipe comprises an outer pipe layer and an inner pipe layer. The inner pipe layer is arranged in the outer pipe layer. The outer pipe layer comprises a first arc plate and a second arc plate which are fixedly connected. The inner pipe layer comprises a third arc plate and a fourth arc plate which are of an integrated structure. The second arc plate and the fourth arc plate are of an integrated structure. The thickness ratio range value of the first arc plate and the third arc plate or the second arc plate and the fourth arc plate is 1:3-3:1. In addition, a manufacturing method of the S pipe is further provided. According to the S pipe of the structure, the overlaying process is omitted, the inner wall of the inner pipe layer is smooth, the flowing channel resistance is small, the production efficiency is high, and the use cost is low. The concrete pumping device comprising the S pipe is further provided.
Description
Technical field
The present invention relates to pumping machine field, particularly a kind of S pipe and manufacture method thereof, concrete pumping equipment.
Background technique
Concrete mixer in concrete pumping equipment and drag pump, because it has flexibly, the advantage such as convenient, efficient, become at present concrete conveying equipment important while building high-rise building, concrete pumping equipment is high-rise to building concrete conveyance by delivery pipe, because delivery pipe need bear high pressure and concrete washing away, therefore, delivery pipe is the parts of outbalance in concrete pumping equipment.
S in delivery pipe pipe, effect is particularly crucial, can directly affect working life and the stability of concrete pumping equipment, and it is positioned at hopper, and connect respectively and carry cylinder and delivery pipe,, with regard to shape, be one and there is roughly contrary bend pipe of both direction.S pipe is S-type substantially from the side, is the different steel tubing in different shapes of two outer dia.Because its internal surface directly bears concrete erosion and wearing and tearing, require to have higher wear resistance; In pumping procedure, S pipe need not stop to wave motion switch direction, is subject to concrete impact simultaneously, requires to have good intensity.
At present, for the S pipe on concrete pumping equipment, be bead-welding technology preparation.Specifically as shown in Figure 1, raw material Q345 steel plate etc. is cut off to material, adopt thermoforming mould compression technology to prepare the bend pipe of two halves up and down of S pipe, at two halves inner tube wall build-up wear-resistant material, and carry out annealing in process, and remove stress, upper and lower two halves bend pipe welding is afterwards complete S pipe.
The deficiency that this technique exists is:
(1) the S inner tube wall of built-up welding gained is coarse, and concrete circulation resistance is large, and inwall is more easy to wear, and easily causes plugging;
(2) surfacing quality is difficult to control, and overlap, transverse weld defects i.e.cracks are difficult to avoid, and affect working life;
(3) bead-welding technology poor controllability, welding operation is difficult to quantize, and easily causes chemical composition and the performance variation of hardfacing alloy, is difficult to guarantee layer thickness and uniformity;
(4) material is carried out to preheating before built-up welding, the destressing of need annealing of heap postwelding is processed, and technological process is numerous and diverse, and manufacturing efficiency is low;
(5) heap postwelding hardness is up to 60HRC, and in the situation that guaranteeing working life, because bead-welding technology adopts a large amount of wear resistant alloy materials, its manufacture cost will be comparatively high.
In sum, how a kind of inner wall smooth is provided, flow passage resistance force of waterproof is little and cancels bead-welding technology, manufacturing efficiency is high and user cost is low S pipe and manufacture method thereof, and the concrete pumping equipment that comprises this S pipe, become those skilled in the art to need the technical problem of solution badly.
Summary of the invention
In view of this, one of the problem to be solved in the present invention is how a kind of inner wall smooth to be provided, flow passage resistance force of waterproof is little and cancels bead-welding technology, manufacturing efficiency is high and user cost is low S pipe.
Two of the problem to be solved in the present invention is the manufacture methodes how a kind of above-mentioned S pipe is provided.
Three of the problem to be solved in the present invention is how a kind of concrete pumping equipment that comprises above-mentioned S pipe is provided.
For one of addressing the above problem, the present invention proposes a kind of S pipe, for concrete pumping equipment, described S pipe comprises external tube layer and inner tube layer, described inner tube layer is arranged in described external tube layer, described external tube layer comprises the first circular arc plate and the second circular arc plate, and described the first circular arc plate is fixedly connected with the second circular arc plate; Described inner tube layer comprises three-arc plate and the 4th circular arc plate, and described the first circular arc plate and described three-arc plate are integral type structure, and described the second circular arc plate and described the 4th circular arc plate are integral type structure; The Thickness Ratio value range of described the first circular arc plate and described three-arc plate or described the second circular arc plate and described the 4th circular arc plate is 1:3 to 3:1.
As the improvement on the one hand of a kind of S pipe of the present invention, described the first circular arc plate and described the second circular arc plate are fixed by welding manner.
As the improvement on the one hand of a kind of S pipe of the present invention, the material of described three-arc plate and the 4th circular arc plate is medium high carbon low alloy steel, and the material of described the first circular arc plate and the second circular arc plate is low carbon steel.
For address the above problem two, the present invention proposes S pipe manufacturing method as above, comprise the steps:
Step 1: select inner tube layer material and external tube layer material, and bi-material is rolled into ply-metal;
Step 2: ply-metal blanking, compression molding is prepared into the first circular arc plate and the second circular arc plate;
Step 3: group is to the first circular arc plate and the second circular arc plate, and weld, S pipe made;
Step 4: S pipe is quenched;
Step 5: S pipe is carried out to tempering.
As the improvement on the one hand of a kind of S pipe manufacturing method of the present invention, when S pipe is entered to quenching, quenching temperature is 800 ℃ to 900 ℃, and the quenching time is 30 to 50 minutes.
As the improvement on the one hand of a kind of S pipe manufacturing method of the present invention, quenching temperature is 840 ℃, and the quenching time is 40 minutes.
As the improvement on the one hand of a kind of S pipe manufacturing method of the present invention, when S pipe is entered to tempering, tempering temperature is 140 ℃ to 180 ℃, and temper time is 80 to 120 minutes.
As the improvement on the one hand of a kind of S pipe manufacturing method of the present invention, tempering temperature is 160 ℃, and temper time is 100 minutes.
The S pipe of said structure, comprise inner tube layer and external tube layer, external tube layer comprises the first circular arc plate and the second circular arc plate, inner tube layer comprises three-arc plate and the 4th circular arc plate, the first circular arc plate and three-arc plate are integral type structure, the second circular arc plate and the 4th circular arc plate are integral type structure, and the Thickness Ratio value range of the first circular arc plate and three-arc plate or the second circular arc plate and the 4th circular arc plate is 1:3 to 3:1.The S pipe of this structure, after adopting said method to manufacture, its inner tube layer hardness is high, wear resistance good, and external tube layer good toughness, strong shock resistance, can meet the requirement of concrete conveyance; Compare with the S pipe of casting, its weight is lighter; Compare with existing composite S pipe, cancelled bead-welding technology, inwall is more smooth, and flow passage resistance force of waterproof is less, and wear-resisting property is good, has also improved manufacturing efficiency, has reduced cost of production.To sum up, compared with prior art, that the S pipe that the present invention proposes has advantages of is lightweight, wear resistance good, inwall is more smooth, cost of production is low and the aspect such as good toughness.
For address the above problem three, the present invention proposes a kind of concrete pumping equipment, comprise hopper and be arranged at S in described hopper pipe, described S pipe is the S pipe described in as above any one, or described S pipe obtains by the manufacture method described in above-mentioned any one.
As the improvement on the one hand of a kind of S concrete pumping equipment of the present invention, described concrete pumping equipment is concrete mixer or drags pump, or Vehicle loaded pump.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.
Fig. 1 is the manufacture method flow process of S pipe in correlation technique.
Fig. 2 is the structural representation of a kind of S pipe of the present invention;
Fig. 3 is the manufacture method flow chart of a kind of S pipe of the present invention.
In Fig. 2, the corresponding relation of reference character is:
1 external tube layer 2 inner tube layers
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the present invention can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
S pipe as shown in Figure 2, for concrete pumping equipment, specifically be arranged in the hopper of concrete pumping equipment, one end is connected with carrying cylinder, and the other end is connected with delivery pipe, comprises external tube layer 1 and inner tube layer 2, inner tube layer 2 is arranged in external tube layer 1, particularly, external tube layer 1 comprises the first circular arc plate and the second circular arc plate, and the first circular arc plate is fixedly connected with the second circular arc plate; Inner tube layer 2 comprises three-arc plate and the 4th circular arc plate, and the first circular arc plate and three-arc plate are integral type structure, and the second circular arc plate and the 4th circular arc plate are integral type structure; The Thickness Ratio value range of the first arc tube and three-arc plate or the second circular arc plate and the 4th circular arc plate is 1:3 to 3:1.
In technique scheme, the material that inner tube layer 2 adopts is medium high carbon alloy steel, the material that external tube layer 1 adopts is low carbon steel, the first circular arc plate and the second circular arc plate are specifically fixed connection by welding manner, while welding, must align the first circular arc plate and the second circular arc plate, can weld.
On the other hand, the present invention also proposes a kind of manufacture method of above-mentioned S pipe, as shown in Figure 3, comprises the steps:
Step 1: select inner tube layer material and external tube layer 1 material, and bi-material is rolled into bimetal Clad Steel Plate; Particularly, the material of external tube layer 1 is low carbon steel, as 20#, Q345 etc.The material of inner tube layer 2 is medium high carbon low alloy steel, as 65Mn, 55SiMn etc.It should be noted that, the operation of rolling of inner tube layer 2 and external tube layer 1 can adopt the techniques such as hot rolling composite algorithm, cold rolling composite algorithm and powder metallurgy composite algorithm, at this, does not do concrete restriction.
Step 2: ply-metal blanking, by die press technology for forming, prepare the first circular arc plate and the second circular arc plate, the radian of the first circular arc plate and the second circular arc plate is determined according to the pipe diameter size of S pipe, when the caliber of S pipe is larger, the radian of the first circular arc plate and the second circular arc plate is also relatively large, otherwise less.
Step S3: the first circular arc plate is grouping and is fixedly connected with the second circular arc plate, form S pipe, concrete Placement preferred weld.
Step 4: S pipe is carried out to quenching technical processing;
Step 5: S pipe is carried out to tempering process processing;
In technique scheme, when S pipe is heat-treated, heat treatment mode is as follows:
First, S pipe is quenched, quenching temperature is 800 ℃ to 900 ℃, and the quenching time is 30 to 50 minutes.Particularly, preferably 840 ℃ of quenching temperatures, the quenching time is preferably 40 minutes, and this kind of scheme quenching effect is optimum.
Secondly, S pipe is carried out to tempering, tempering temperature is 140 ℃ to 180 ℃, and temper time is 80 to 120 minutes.Particularly, tempering temperature is preferably 160 ℃, and temper time is preferably 100 minutes, and this kind of scheme tempering effect is optimum.
The inner tube layer 2 of producing through above-mentioned steps, its hardness is larger, conventionally more than 55HRC.Meanwhile, after quenching and temper, inner tube layer 2 material structure are high carbon martensite, and its wear resistance is stronger; External tube layer 1 material structure is for low-carbon martensite and the pearlite that do not changed add ferrite, and its obdurability effectively improves.
The S pipe of said structure, inner tube layer 2 hardness are high, wear resistance good, and external tube layer 1 good toughness, strong shock resistance, can meet the requirement of concrete conveyance; Compare with the S pipe of casting, its weight is lighter; Compare with existing composite S pipe, cancelled bead-welding technology, inwall is more smooth, and flow passage resistance force of waterproof is less, and wear-resisting property is good, has also improved manufacturing efficiency, effectively reduces cost of production.
In addition, cancelled traditional inner tube layer 2 and external tube layer 1 compound technique again of preparing respectively, directly adopt bimetal Clad Steel Plate as raw material, preparation composite S pipe, internal and external layer combination force is strong, effectively avoided the peeling off of inner layer material in using, plugging, and preparation process is more simple, manufacturing efficiency is higher.
To sum up, compared with prior art, that the S pipe that the present invention proposes has advantages of is lightweight, wear resistance good, inwall is more smooth, cost of production is low and the aspect such as good toughness.
In addition, the present invention also proposes a kind of concrete pumping equipment, comprises hopper and is arranged at S in described hopper pipe, and S pipe is the S pipe described in as above any one, or described S pipe obtains by the manufacture method described in as above any one.Further, concrete pumping equipment can be concrete mixer, and all right towed concrete pump, can also be Vehicle loaded pump.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a S manages, for concrete pumping equipment, described S pipe comprises external tube layer (1) and inner tube layer (2), described inner tube layer (2) is arranged in described external tube layer (1), it is characterized in that, described external tube layer (1) comprises the first circular arc plate and the second circular arc plate, and described the first circular arc plate is fixedly connected with the second circular arc plate; Described inner tube layer (2) comprises three-arc plate and the 4th circular arc plate, and described the first circular arc plate and three-arc plate are integral type structure, and described the second circular arc plate and the 4th circular arc plate are integral type structure; The Thickness Ratio value range of described the first circular arc plate and described three-arc plate or described the second circular arc plate and described the 4th circular arc plate is 1:3 to 3:1.
2. S manages according to claim 1, it is characterized in that, described the first circular arc plate and described the second circular arc plate are fixed by welding manner.
3. S manages according to claim 1, it is characterized in that, the material of described three-arc plate and the 4th circular arc plate is medium high carbon low alloy steel, and the material of described the first circular arc plate and the second circular arc plate is low carbon steel.
4. the S pipe manufacturing method described in any one in claims 1 to 3, is characterized in that, comprises the steps:
Step 1: select inner tube layer material and external tube layer material, and bi-material is rolled into ply-metal;
Step 2: ply-metal blanking, compression molding is prepared into the first circular arc plate and the second circular arc plate;
Step 3: group is to the first circular arc plate and the second circular arc plate, and weld, S pipe made;
Step 4: S pipe is quenched;
Step 5: S pipe is carried out to tempering.
5. S pipe manufacturing method according to claim 4, is characterized in that, when S pipe is quenched, quenching temperature is 800 ℃ to 900 ℃, and the quenching time is 30 to 50 minutes.
6. S pipe manufacturing method according to claim 5, is characterized in that, quenching temperature is 840 ℃, and the quenching time is 40 minutes.
7. S pipe manufacturing method according to claim 4, is characterized in that, when S pipe is entered to tempering, tempering temperature is 140 ℃ to 180 ℃, and temper time is 80 to 120 minutes.
8. S pipe manufacturing method according to claim 7, is characterized in that, tempering temperature is 160 ℃, and temper time is 100 minutes.
9. a concrete pumping equipment, comprises hopper and is arranged at the S pipe in described hopper, it is characterized in that, described S pipe is the S pipe described in any one in claims 1 to 3, or described S pipe obtains by the manufacture method described in any one in claim 4 to 8.
10. concrete pumping equipment according to claim 9, is characterized in that, described concrete pumping equipment is concrete mixer or drags pump, or Vehicle loaded pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289050.6A CN104074737B (en) | 2014-06-25 | 2014-06-25 | S pipe, manufacturing method thereof and concrete pumping device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410289050.6A CN104074737B (en) | 2014-06-25 | 2014-06-25 | S pipe, manufacturing method thereof and concrete pumping device |
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| CN104074737A true CN104074737A (en) | 2014-10-01 |
| CN104074737B CN104074737B (en) | 2017-02-08 |
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Cited By (2)
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| CN105171342A (en) * | 2015-08-24 | 2015-12-23 | 扬州大学 | Making and forming method for model of siphon type water outlet passage of large pump station |
| CN112207516A (en) * | 2020-09-29 | 2021-01-12 | 苏州罗克莱堆焊科技有限公司 | Manufacturing process of surfacing composite elbow |
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Cited By (3)
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| CN105171342A (en) * | 2015-08-24 | 2015-12-23 | 扬州大学 | Making and forming method for model of siphon type water outlet passage of large pump station |
| CN112207516A (en) * | 2020-09-29 | 2021-01-12 | 苏州罗克莱堆焊科技有限公司 | Manufacturing process of surfacing composite elbow |
| CN112207516B (en) * | 2020-09-29 | 2022-11-08 | 苏州罗克莱堆焊科技有限公司 | Manufacturing process of surfacing composite elbow |
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| CN104074737B (en) | 2017-02-08 |
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