CN202290815U - Cold drawing machine for seamless steel tube - Google Patents

Cold drawing machine for seamless steel tube Download PDF

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Publication number
CN202290815U
CN202290815U CN2011203760018U CN201120376001U CN202290815U CN 202290815 U CN202290815 U CN 202290815U CN 2011203760018 U CN2011203760018 U CN 2011203760018U CN 201120376001 U CN201120376001 U CN 201120376001U CN 202290815 U CN202290815 U CN 202290815U
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CN
China
Prior art keywords
cold
steel pipe
blank steel
blanking
blow tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN2011203760018U
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Chinese (zh)
Inventor
程锡铭
徐海峰
柳宏道
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHANGJIAGANG FREE-TRADE ZONE HENGLONG STEEL TUBE Co Ltd
Original Assignee
ZHANGJIAGANG FREE-TRADE ZONE HENGLONG STEEL TUBE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by ZHANGJIAGANG FREE-TRADE ZONE HENGLONG STEEL TUBE Co Ltd filed Critical ZHANGJIAGANG FREE-TRADE ZONE HENGLONG STEEL TUBE Co Ltd
Priority to CN2011203760018U priority Critical patent/CN202290815U/en
Application granted granted Critical
Publication of CN202290815U publication Critical patent/CN202290815U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model discloses a cold drawing machine for a seamless steel tube. The cold drawing machine comprises a machine frame, a material receiving trough, a trolley track, a drawing die seat, and a turning material conveying device; the upstream end of the material receiving trough is provided with a conveying power device for intermittently conveying materials in a longitudinal direction; the trolley track is parallel to the material receiving trough, and is provided with a cold drawing trolley; the cold drawing trolley is in drive connection with a cold drawing power device and a trolley travelling power device which drives the cold drawing trolley to travel; the drawing die seat is arranged on the material conveying downstream of the material receiving trough, and is provided with an outer die which is correspondingly matched with a jaw of the cold drawing trolley; the turning material conveying device is arranged at the material conveying downstream position of the drawing die seat; and a turning frame is driven by a turning power device to turn intermittently. The cold drawing machine for the seamless steel tube is high in cold drawing efficiency, and occupies small floor in the longitudinal direction.

Description

The cold-drawing seamless tube machine
Technical field
The utility model relates to a kind of drawbench, is meant a kind of cold-drawing seamless tube machine especially.
Background technology
The equipment of at present general cold-drawing seamless tube is that the blank steel pipe that needs change caliber and wall thickness is carried out tup; Become the blank steel pipe before the cold-drawing seamless tube; Flat, the toe of end hammer with the blank steel pipe that needs cold-drawn processing; So that make the blank steel pipe can stretch out the external mold nib of drawbench, make the cold-drawn dolly can clamp tup and carry out cold-drawn, this technology is generally used till today.
And the structure of the drawbench of usefulness is at present: the drawing-die seat is provided with external mold; The both sides of drawing-die seat are respectively equipped with and are positioned at same straight line blow tank and trolley track, and the cold-drawn dolly is installed on the trolley track, and the core bar that is promoted by the core bar dolly is installed on the blow tank; When whole cold-drawn is operated; At first manual work is sent to the blank steel pipe in the blow tank, and core bar dolly promotion core bar enters in the blank steel pipe then, and together the blank steel pipe is pushed in the nib of external mold; And the cold-drawn dolly of opposite side that is positioned at the drawing-die seat is to drawing mill seat to draw close, and jaw is clamped tup then to the direction drawing away from the drawing-die seat.There are three bigger defectives in this drawbench:
1, drawing is that the blank steel pipe enters into that end of trolley track from blow tank through the drawing-die seat; In drawing process; Do not accomplish if drawing, blank steel pipe one end is in the blow tank side, and the other end is in that side of trolley track; Must one steel pipe is whole could continue feeding by manual work after passing external mold, drawing efficient like this is just very low;
2, because the feeding and the drawing direction of blank steel pipe are a direction, therefore, the longitudinal length of whole drawbench is just very long, and floor space is bigger like this;
3, whole drawbench needs artificial feeding, and not only troublesome poeration has been wasted manpower, and the operating process noise is very big, influences the healthy of operative employee.
And present drawbench is and addresses the above problem.
The utility model content
The utility model technical problem to be solved is: provide a kind of cold-drawn efficient high, vertically take up an area of little cold-drawing seamless tube machine.
The utility model another technical problem to be solved is: but a kind of cold-drawing seamless tube machine of automatic charging is provided, saved manpower, avoid causing physical impairment to the operative employee, reduce the generation of security incident.
For solving the problems of the technologies described above; The technical scheme of the utility model is: a kind of cold-drawing seamless tube machine; Comprise frame, said drawbench also comprises: blow tank, the upstream extremity of said blow tank are provided with the vertical intermittently power delivery unit of feeding of the blank steel pipe that promotes in the blow tank; Trolley track, said trolley track and blow tank laterally arrange, and the cold-drawn dolly is installed on the said trolley track, and said cold-drawn dolly all drives with the carriage walking power set of the cold-drawn carriage walking of cold-drawn power set, driving and is connected; The drawing-die seat, said drawing-die seat is installed on the feeding downstream of blow tank, and the external mold with the jaw corresponding matching of cold-drawn dolly is installed on the said drawing-die seat; The upset pay-off; Said upset pay-off is installed on the feeding downstream position of drawing-die seat; Said upset pay-off comprises rollover stand, and said rollover stand rotates through vertical main shaft parallel with blow tank and is installed on the overturning seat, and the nib of said external mold and blow tank discharging port are with respect to the axial symmetry of vertical main shaft; Vertical relatively main shaft is symmetrically installed with blank steel pipe support tube on the said rollover stand; Said blank steel pipe support tube respectively with the die hole location corresponding matching of blow tank and external mold, in the blank steel pipe support tube plug is installed, the free end of said plug is provided with the internal mold that cooperates with external mold; The other end of the said plug plug thrust unit interior with being arranged at blank steel pipe support tube is connected, and said rollover stand drives intermittently through the upset power set and overturns.
As a kind of preferred scheme; Described drawbench also comprises and is fixed on the frame and is positioned at blow tank and blank steel pipe storage rack that trolley track top is obliquely installed; The low side of said blank steel pipe storage rack is the blanking end; Said blow tank is positioned at the below of blanking end, on the blanking end of said blank steel pipe storage rack baffle plate is installed, and the lifting body that jack-up is treated the blank steel pipe blanking of blanking is installed on the blanking end of said blank steel pipe storage rack.Like this; Be fed at the blank steel pipe and accept in this processing step of groove, only need a manually-operated overhead traveling crane that steel pipe is put on the blank steel pipe storage rack and get final product, according to predefined programme-control can automatic blanking in blow tank; Thereby realize the automation of material loading; Practiced thrift manpower, avoided causing physical impairment, reduced the generation of security incident to the operative employee.
As a kind of preferred scheme, said lifting body comprises sleeve, and turning set is equipped with dwang in the said sleeve, is fixed with the jacking guide plate on the said dwang, and said dwang is by the dwang rotational power plant.
As a kind of preferred scheme, said blank steel pipe storage rack is provided with the vibrating device that is used to vibrate blank steel pipe storage rack.Therefore, through vibrating device can with put into blank steel pipe on the blank steel pipe storage rack shake flat, thereby guarantee the smooth and easy of blanking.
As a kind of preferred scheme, said power delivery unit comprises that by motor-driven chain, said chain is provided with scraping wings.
As a kind of preferred scheme, said upset power set comprise cylinder and pinion and rack, and said gear is fixed on vertical main shaft, and said tooth bar is connected with cylinder piston rod.
As a kind of preferred scheme, the doffer of being convenient to the steel pipe blanking after the cold-drawn is installed on the said frame.
As a kind of preferred scheme; Said doffer comprises that vertical rotation is installed on the vertical shaft that is positioned at trolley track on the frame; The upper end of said vertical shaft is fixed with the guide plate on band blanking inclined-plane, and said vertical shaft drives with the blanking power set that driving guide plate 90 degree rotate back and forth and is connected.Therefore; Parallel at cold-drawn dolly traveling process centering guide with trolley track; Thereby can not influence advancing of cold-drawn dolly, and after the cold-drawn of cold-drawn dolly was accomplished, the blanking power set drove the vertical shaft rotation; It is parallel with trolley track to make guide plate rotate 90 degree, and the steel pipe of cold-drawn completion contacts with the blanking inclined-plane and the blanking along the blanking inclined-plane like this.
As a kind of preferred scheme, be provided with in the said blank steel pipe support tube and be convenient to the roller that the blank steel pipe moves.
After having adopted technique scheme, the effect of the utility model is:
1, the cold-drawn of the feed direction of the drawbench blank steel pipe of the utility model and cold drawing steel tube is in the opposite direction, so the length that longitudinal length is compared common drawbench will lack, thereby vertically floor space is little;
2, the drawbench utilization of the utility model upset pay-off; Therefore, blow tank carries the blank steel pipe to get into blank steel pipe support tube and cold-drawn dolly cold-drawn action can be moved simultaneously, like this; Save the time of cold-drawn greatly, thereby improved the efficient of cold-drawn.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the local schematic top plan view of trolley track one end of the utility model embodiment;
Fig. 2 is the local schematic top plan view of the trolley track interlude of the utility model embodiment;
Fig. 3 is the local schematic top plan view of the trolley track other end of the utility model embodiment;
Fig. 4 is the local schematic top plan view of the upset pay-off of the utility model embodiment;
Fig. 5 is the side schematic view of the upset power set of the utility model embodiment;
Fig. 6 is the side schematic view of the utility model embodiment;
Fig. 7 is the side partial sectional view of the upset pay-off of the utility model embodiment;
Fig. 8 is the cross-sectional schematic of the lifting body of the utility model embodiment;
Fig. 9 is the cross-sectional schematic of the doffer of the utility model embodiment;
In the accompanying drawing: 1. frame; 2. blow tank; 3. power delivery unit; 301. motor; 302. chain; 303. scraping wings; 4. trolley track; 5. cold-drawn dolly; 6. cold-drawn power set; 601. cold-drawn motor; 602. decelerator; 603. cold-drawn driving chain; 7. carriage walking power set; 8. drawing-die seat; 9. upset pay-off; 901. rollover stand; 902. vertical main shaft; 903. overturning seat; 904. blank steel pipe support tube; 905. plug; 906. plug thrust unit; 907. upset power set; 9071. cylinder; 9072. pinion and rack; 9073. tooth bar mount pad; 9074. slide rail; 9075. pulley; 908. roller; 10. blank steel pipe storage rack; 11. baffle plate; 12. lifting body; 1201. sleeve; 1202. dwang; 1203. jacking guide plate; 13. blank steel pipe; 14. leading truck; 15. vertical shaft; 16. guide plate; 1601. blanking inclined-plane.
The specific embodiment
Through specific embodiment the utility model is done further to describe in detail below.
A kind of cold-drawing seamless tube machine to shown in Figure 9, comprises frame 1 like Fig. 1, and said drawbench also comprises: blow tank 2, the upstream extremity of said blow tank 2 are provided with the blank steel pipe 13 vertical intermittently power delivery units 3 of feeding that promote in the blow tank 2; Said power delivery unit 3 comprises the chain 302 that is driven by motor 301, and said chain 302 is provided with scraping wings 303.Motor 301 drives chain 302 actions, thereby conveying blank steel pipe 13 intermittently enters in the blank steel pipe support tube 904.
Trolley track 4, said trolley track 4 laterally arranges with blow tank 2, on the said trolley track 4 cold-drawn dolly 5 is installed, and said cold-drawn dolly 5 all drives with the carriage walking power set 7 of cold-drawn dolly 5 walkings of cold-drawn power set 6, driving and is connected; Said cold-drawn power set 6 comprise the cold-drawn driving chain 603 that vertically is provided with along trolley track 4; Cold-drawn motor 601 drives 603 actions of cold-drawn driving chain through decelerator 602; Said cold-drawn dolly 5 is provided with the hook that can hook cold-drawn driving chain 603; This hook is through hook or the disengaging of hook driving cylinder realization with cold-drawn driving chain 603; Said carriage walking power set 7 comprise the carriage walking driving chain, and said carriage walking driving chain is connected with cold-drawn dolly 5 and is driven by movable motor.
At the doffer that the steel pipe blanking after being convenient to cold-drawn is installed on the frame 1.Said doffer comprises that vertical rotation is installed on the vertical shaft 15 that is positioned at dolly rail 4 roads on the frame 1; The upper end of said vertical shaft 15 is fixed with the guide plate 16 on band blanking inclined-plane 1601, and said vertical shaft 15 drives with the blanking power set that driving guide plate 16 90 degree rotate back and forth and is connected.Therefore; Parallel at cold-drawn dolly 5 traveling process centering guides 16 with trolley track 4; Thereby can not influence advancing of cold-drawn dolly 5, and after 5 cold-drawns of cold-drawn dolly were accomplished, the blanking power set drove vertical shaft 15 rotations; Make guide plate 16 rotations 90 degree parallel with trolley track, the steel pipe of cold-drawn completion contacts with blanking inclined-plane 1601 and 1601 blankings along the blanking inclined-plane like this.This guide plate 16 is along evenly distributing three on the trolley track 4, and through the whole same driving of blanking power set.
Drawing-die seat 8, said drawing-die seat 8 is installed on the feeding downstream of blow tank 2, and the external mold with the jaw corresponding matching of cold-drawn dolly 5 is installed on the said drawing-die seat 8, is lived the tup drawing of seamless steel pipe when cold-drawn dolly 5 moves to drawing-die seat 8 by the jaw clamp;
Upset pay-off 9, said upset pay-off 9 is installed on the feeding downstream position of drawing-die seat 8, and said upset pay-off 9 comprises rollover stand 901; Said rollover stand 901 is installed on the overturning seat 903 through rotating with blow tank 2 parallel vertical main shafts 902; The nib of said external mold and blow tank 2 discharging ports are with respect to the axial symmetry of vertical main shaft 902, on the said rollover stand 901 relatively vertically main shaft 902 be symmetrically installed with blank steel pipe support tube 904, said blank steel pipe support tube 904 respectively with the die hole location corresponding matching of blow tank 2 and external mold; Like this; Vertically the die hole location of the blank steel pipe support tube 904 of main shaft 902 1 sides and external mold is on time, and the blank steel pipe support tube 904 of opposite side is aimed at blow tank 2 just, in the blank steel pipe support tube 904 plug 905 is installed; The free end of said plug 905 is provided with the internal mold that cooperates with external mold; The other end of said plug 905 is connected with plug thrust units 906 in being arranged at blank steel pipe support tube 904, and described plug thrust unit 906 is preferably cylinder, through the impetus of cylinder; Realization is passed nib with the tup of blank steel pipe 13, and internal mold and external mold on the plug 905 are cooperated.Said rollover stand 901 drives intermittently upset through upset power set 907.Be provided with in the said blank steel pipe support tube 904 and be convenient to the roller 908 that blank steel pipe 13 moves.
Said upset power set 907 comprise cylinder 9071 and pinion and rack 9072; Said gear is fixed on vertical main shaft 902; Said tooth bar is mounted on the tooth bar mount pad 9073; Tooth bar mount pad 9073 is installed on the slide rail 9074 through pulley 9075, and tooth bar is connected with the piston rod of cylinder 9071.Cylinder 9071 promotes tooth bar mount pad 9073 and slides, thereby driving is just changeed with the tooth bar meshed gears or reversed, the upset of realization rollover stand 901.Certainly, upset power set 907 also can be servomotors, and servomotor directly drives vertical main shaft 902 forward and backwards.
In order to save manpower; Realize whole drawing automation; Described drawbench also comprises and is fixed on the frame 1 and is positioned at the blank steel pipe storage rack 10 that blow tank 2 and trolley track 4 tops are obliquely installed; The low side of said blank steel pipe storage rack 10 is the blanking end; Said blow tank 2 is positioned at the below of blanking end, on the blanking end of said blank steel pipe storage rack 10 baffle plate 11 is installed, and the lifting body 12 that jack-up is treated blank steel pipe 13 blankings of blanking is installed on the blanking end of said blank steel pipe storage rack 10.Like this; Be fed at blank steel pipe 13 and accept in this processing step of groove; Only need the manually-operated overhead traveling crane that blank steel pipe 13 is put on the blank steel pipe storage rack 10 and get final product, according to predefined programme-control can automatic blanking in blow tank 2, thereby the automation of realization material loading; Practiced thrift manpower, avoided causing physical impairment to the operative employee.Certainly; After making blank steel pipe 13 put into blank steel pipe storage rack 10, can lie low by one deck, therefore, on said blank steel pipe storage rack 10, be provided with the vibrating device that is used to vibrate blank steel pipe storage rack 10; This vibrating device comprises a vibrating motor, and it is smooth and easy to help blank steel pipe blanking.
Said lifting body 12 comprises sleeve 1201, and turning set is equipped with dwang 1202 in the said sleeve 1201, is fixed with jacking guide plate 1203 on the said dwang 1202, and said dwang 1202 is by dwang 1202 rotational power plants.Dwang 1202 rotational power plants drive dwang 1202 and rotate, and just drive 1203 upsets of jacking guide plate, and jacking guide plate 1203 just will be treated blank steel pipe 13 jack-up of blanking like this; Because the effect of jacking guide plate 1203; Blank steel pipe 13 surpassed baffle plate 11, thereby fall along jacking guide plate 1203, for realize blanking accurately; Side at blow tank 2 is equipped with leading truck 14, improves the degree of accuracy and the security of blanking.
The operation principle of the utility model is: at first, the reset condition of rollover stand 901 is that the blank steel pipe support tube 904 of vertical main shaft 902 both sides is aimed at blow tank 2 and nib respectively; The jacking guide plate 1203 of lifting body 12 is with blank steel pipe 13 jack-up, and blank steel pipe 13 drops in the blow tank 2, and scraping wings 303 drives through chain 302 and is pushed into blank steel pipe 13 in the blank steel pipe support tube 904 and is enclosed within on the plug 905; Then, scraping wings 303 is retreated return, and rollover stand 901 overturns 180 ° under the driving of upset power set 907; The blank steel pipe support tube 904 that does not insert blank steel pipe 13 is aimed at blow tank 2; And the blank steel pipe support tube 904 that inserts blank steel pipe 13 is aimed at nib, and behind scraping wings 303 returns, lifting body 12 continues again to move with blank steel pipe 13 blankings in blow tank 2; And on the other hand; Be inserted with cylinders in the blank steel pipe support tube 904 of blank steel pipe 13 and promote plugs 905 and be inserted in the nib with blank steel pipes 13, cold-drawn dolly 5 under the drive of carriage walking power set 7 to drawing-die seat 8 near and clamp tup by the dolly jaw, and meanwhile; Scraping wings 303 continues again follow-up blank steel pipe 13 is pushed in the blank steel pipe support tube 904; Like this, when 5 cold-drawns of cold-drawn dolly were accomplished, a blank steel pipe 13 also was fed to blank steel pipe support tube 904; Upset power set 907 drive rollover stand 901 upsets again and repeat above-mentioned action like this; The blanking power set make guide plate 16 vertical with trolley track 4 after driving guide plate 16 rotations, and the steel pipe that cold-drawn is accomplished is 1601 blankings along the blanking inclined-plane.This drawbench has been realized automation, and each compact steps improves the efficient of cold-drawn, and floor space is little, has saved manpower.

Claims (9)

1. the cold-drawing seamless tube machine comprises frame (1), and it is characterized in that: said drawbench also comprises
Blow tank (2), the upstream extremity of said blow tank (2) are provided with the vertical intermittently power delivery unit (3) of feeding of the blank steel pipe that promotes in the blow tank (2);
Trolley track (4); Said trolley track (4) laterally arranges with blow tank (2); Cold-drawn dolly (5) is installed on the said trolley track (4), and said cold-drawn dolly (5) all is connected with the carriage walking power set (7) of cold-drawn dolly (5) walking of cold-drawn power set (6), driving;
Drawing-die seat (8), said drawing-die seat (8) is arranged at the feeding downstream of blow tank (2), and the corresponding external mold of jaw with cold-drawn dolly (5) is installed on the said drawing-die seat (8);
Upset pay-off (9); Said upset pay-off (9) is installed on the feeding downstream position of drawing-die seat (8); Said upset pay-off (9) comprises rollover stand (901); Said rollover stand (901) rotates through vertical main shaft (902) parallel with blow tank (2) and is installed on the overturning seat (903); The nib of said external mold and blow tank (2) discharging port is with respect to the axial symmetry of vertical main shaft (902); Vertical relatively main shaft (902) is symmetrically installed with blank steel pipe support tube (904) on the said rollover stand (901); Said blank steel pipe support tube (904) respectively with the die hole location corresponding matching of blow tank (1) and external mold, plug (905) is installed in the blank steel pipe support tube (904), the free end of said plug (905) is provided with the internal mold that cooperates with external mold; The other end of said plug (905) the plug thrust unit interior with being arranged at blank steel pipe support tube (904) is connected (906), and said rollover stand (901) drives intermittently through upset power set (907) and overturns.
2. cold-drawing seamless tube machine as claimed in claim 1; It is characterized in that: described drawbench comprises that also being fixed on frame (1) goes up and be positioned at the blank steel pipe storage rack (10) that is obliquely installed above blow tank (2) and the trolley track (4); The low side of said blank steel pipe storage rack (10) is the blanking end; Said blow tank (2) is positioned at the below of blanking end; Baffle plate (11) is installed on the blanking end of said blank steel pipe storage rack (10), the lifting body (12) that jack-up is treated the blank steel pipe blanking of blanking is installed on the blanking end of said blank steel pipe storage rack (10).
3. cold-drawing seamless tube machine as claimed in claim 2; It is characterized in that: said lifting body (12) comprises sleeve (1201); The interior turning set of said sleeve (1201) is equipped with dwang (1202); Be fixed with jacking guide plate (1203) on the said dwang (1202), said dwang (1202) is by the dwang rotational power plant.
4. cold-drawing seamless tube machine as claimed in claim 3 is characterized in that: said blank steel pipe storage rack (10) is provided with the vibrating device that is used to vibrate blank steel pipe storage rack (10).
5. cold-drawing seamless tube machine as claimed in claim 1 is characterized in that: said power delivery unit (3) comprises the chain (302) that is driven by motor (301), and said chain (302) is provided with scraping wings (303).
6. cold-drawing seamless tube machine as claimed in claim 1; It is characterized in that: said upset power set (907) comprise cylinder (9071) and pinion and rack (9072); Said gear is fixed on vertical main shaft, and said tooth bar is connected with cylinder (9071) piston rod.
7. cold-drawing seamless tube machine as claimed in claim 1 is characterized in that: the doffer of being convenient to the steel pipe blanking after the cold-drawn is installed on the said frame (1).
8. cold-drawing seamless tube machine as claimed in claim 7; It is characterized in that: said doffer comprises that vertical rotation is installed on the vertical shaft (15) that is positioned at trolley track (4) on the frame (1); The upper end of said vertical shaft (15) is fixed with the guide plate (16) on band blanking inclined-plane (1601), said vertical shaft (15) with drive the blanking power set driving that guide plate (16) 90 degree rotate back and forth and be connected.
9. like each described cold-drawing seamless tube machine of claim 1 to 8, it is characterized in that: be provided with the roller (908) of being convenient to the blank steel pipe and moving in the said blank steel pipe support tube (904).
CN2011203760018U 2011-09-28 2011-09-28 Cold drawing machine for seamless steel tube Withdrawn - After Issue CN202290815U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203760018U CN202290815U (en) 2011-09-28 2011-09-28 Cold drawing machine for seamless steel tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203760018U CN202290815U (en) 2011-09-28 2011-09-28 Cold drawing machine for seamless steel tube

Publications (1)

Publication Number Publication Date
CN202290815U true CN202290815U (en) 2012-07-04

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ID=46359796

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203760018U Withdrawn - After Issue CN202290815U (en) 2011-09-28 2011-09-28 Cold drawing machine for seamless steel tube

Country Status (1)

Country Link
CN (1) CN202290815U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102350445A (en) * 2011-09-28 2012-02-15 张家港保税区恒隆钢管有限公司 Cold-drawing machine for seamless steel tube
CN109351788A (en) * 2018-12-12 2019-02-19 杭州电子科技大学 The ultra-thin steel pipe cold of tube wall

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102350445A (en) * 2011-09-28 2012-02-15 张家港保税区恒隆钢管有限公司 Cold-drawing machine for seamless steel tube
CN102350445B (en) * 2011-09-28 2013-02-20 张家港保税区恒隆钢管有限公司 Cold-drawing machine for seamless steel tube
CN109351788A (en) * 2018-12-12 2019-02-19 杭州电子科技大学 The ultra-thin steel pipe cold of tube wall

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Granted publication date: 20120704

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