CN102114508B - Rolling mould and process for manufacturing variable section heating body of 24-kW voltage stabilizer in nuclear power plant - Google Patents
Rolling mould and process for manufacturing variable section heating body of 24-kW voltage stabilizer in nuclear power plant Download PDFInfo
- Publication number
- CN102114508B CN102114508B CN 200910216981 CN200910216981A CN102114508B CN 102114508 B CN102114508 B CN 102114508B CN 200910216981 CN200910216981 CN 200910216981 CN 200910216981 A CN200910216981 A CN 200910216981A CN 102114508 B CN102114508 B CN 102114508B
- Authority
- CN
- China
- Prior art keywords
- roller die
- heater
- die
- groove
- roller
- 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.)
- Active
Links
Images
Landscapes
- Forging (AREA)
Abstract
The invention discloses a rolling mould for manufacturing a variable section heating body of a 24-KW voltage stabilizer in a nuclear power plant, which comprises components such as roller moulds A (1), roller moulds B (2), a cover plate (3), a pressing plate (4), a pressing-down hand wheel (5), a supporting plate (6), a bearing sleeve (8) and a frame (10), wherein a circle of grooves, of which the section is semi-circular or semi-elliptic, is formed in the middles of cylinders on a plurality of sets of roller moulds A and roller moulds B; and the plurality of sets of roller moulds A and roller moulds B, of which semi-circular diameter or the length of a semi-elliptic short shaft is reduced gradually, are used sequentially for rolling according to the size requirement of a processing object. By the rolling mould, the variable section heating body which is subjected to checking of surface quality, shape size, elongation rate and the fit of transition sections and meets a use requirement of the 24-KW voltage stabilizer in the nuclear power plant can be manufactured, so that correlation technical requirements of foreign like products are met totally.
Description
Technical field
The invention belongs to the stress metal manufacture field, particularly relate to a kind of metallic cover and become the section processing technology.
Background technology
The 24KW voltage-stablizer becomes the section heater element as the heat generating components of nuclear reactor voltage-stablizer, for voltage-stablizer provides heat, wherein 24kW change section heater is the most important part of heater element, its material is Cr20Ni80, two ends are that the changeover portion that is coated with the red copper fuse becomes section, length is 670mm ± 5mm, diameter is transitioned into Φ 2.4mm ± 0.015mm by Φ 2.8mm ± 0.015mm, heater interlude length is 9800mm ± 5mm, diameter is Φ 2.4mm ± 0.015mm, so just consists of the thick middle thin electric heating body in two ends.This change section heater also can be used for other need to carry out high-temperature water heating field.At present, the alloy heat generating body of domestic production normally directly carries out moulding by drawing or extrusion process with the heater blank, the heater size uniform of producing in this way, and two ends do not become section.At present, the domestic report that does not also have limit section heater manufacturing process.Therefore, the employed 24kW of China's nuclear power plant voltage stabilizer becomes the section element that generates heat all needs import, and expensive.
Summary of the invention
The objective of the invention is the defective for prior art, propose a kind of rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater of making.
Another object of the present invention provides a kind of technique of using above-mentioned rolling die to make nuclear power station 24KW voltage-stablizer change section heater.
For achieving the above object, technical scheme of the present invention is as follows: a kind of rolling die of making nuclear power station 24KW voltage-stablizer change section heater, comprise roller die A, roller die B, cover plate, pressing plate, depress handwheel, gripper shoe, bearing holder (housing, cover), framework, wherein roller die A and roller die B have the roller die that a ring cross-section is semicircle or half elliptic groove for many group cylinders middle part, roller die A and roller die B are placed in the framework abreast, it up and down is fixed in framework up and down between two cover plates on both sides by means of bearing holder (housing, cover) respectively in two ends, between framework left end inboard and roller die A, gripper shoe is set, between framework right-hand member inboard and roller die B, pressing plate is set, the pressing plate right side connects depresses handwheel, depress the axle center of the axle center of handwheel and roller die A and roller die B at grade, and over against circle semicircle or the half elliptic groove at roller die A and the upper cylinder of roller die B middle part.During use, dimensional requirement according to processing object, the many covers roller die A and the roller die B that use successively semicircle diameter or half elliptic minor axis length to reduce gradually, depress handwheel by rotation during roll-in and make two semicircles of roller die A and roller die B or half elliptic groove be merged into circle or ellipse, and the processing object in circle or the ellipse is carried out roll-in.
Further, aforesaid a kind of rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater of making, wherein, two cover plates are fixed on the framework by screw A two ends bearing holder (housing, cover) on the vertical direction of rolling die up and down.
Further, aforesaid a kind of rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater of making wherein, is depressed handwheel is fixed on pressing plate by screw B right side.
Further, aforesaid a kind of rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater of making, wherein, the major axis of the half elliptic groove of roller die A and roller die B is 1.6～2.0 times of minor axis.
Further, aforesaid a kind of rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater of making, wherein, the semi-circular recesses diameter of every group of roller die A and roller die B or the minor axis of half elliptic groove are poor to be 0.1mm.
The technique of using above-mentioned rolling die to make nuclear power station 24KW voltage-stablizer change section heater may further comprise the steps:
The processing of A blank
A1 selects materials: the change section heater technological requirement of processing as required, and selections diameter is 8～10mm, length is that the Cr20Ni80 alloy bar of 600～1200mm is as change section heater blank;
A2 boring: boring two diameters along the axle center respectively at steps A 1 selected change section heater blank two ends is the circular hole of 40mm～80mm into 5.0mm～7.0mm, the degree of depth;
The A3 cored: the red copper fuse of processing and the steps A 2 specification negative common difference of holing, cleaning packs into after drying becomes in the hole at section heater blank two ends;
A4 swages: lower to swage through 6～10 roads that change section heater blank that steps A 3 is obtained swages as diameter be the heater bar of 3.0～4.0mm with revolving the hammer machine at 600 ℃～800 ℃;
The A5 drawing: it is 2.8～3.0mm that the heater bar that at room temperature uses wire drawing machine through 2～8 road drawings steps A 4 to be obtained is processed into diameter, length is the heater silk material of 8000～9000mm, every time intermediate annealing temperature is 800 ℃～850 ℃, temperature retention time 2h;
B roll-in drawing:
B1 assembles oval roller die: the half elliptic groove minor axis length of selecting one group of cylinder core is lacked oval roller die A and the oval roller die B of 0.1mm than the heater silk material diameter of preparation in the steps A 5, be assembled on the rolling die;
B2 die sinking blowing: depress handwheel by rotation roller die A and roller die B are separated, the heater silk material that steps A 5 is made is put into the cylinder core half elliptic groove between roller die A and the roller die B, the groove bite of oval roller die A and roller die B is apart from the about 50～70mm of heater silk material one end, and less than the length of red copper fuse in the steps A 3, its objective is in order to guarantee to become the length dimension requirement of section heater;
The oval roller die drawing of B3: depress handwheel to being clamped in two heater silk material pressurizations in the oval roller die groove by rotation, make the groove of roller die A and roller die B fully closed, then carry out drawing to the other end direction of heater silk material, finish drawing when pulling to 2/3 left and right sides of heater overall length; Then at other end repeating step B2 and the B3 of heater silk material;
B4 assembles circular roller die: oval roller die drawing is depressed handwheel by rotation and is unloaded oval roller die, circular roller die A and the circular roller die B of the half elliptic groove minor axis same size of assembling groove diameter and oval roller die after finishing;
B5 die sinking blowing: repeating step B2, die sinking blowing;
The circular roller die drawing of B6: heater silk material is put into the half elliptic groove of the cylinder core between roller die A and the roller die B, placement location carries out drawing with heater silk material with step B2 after axis direction rotates 90 ℃, and the drawing step is with step B3;
B7 finish one take turns oval roller die drawing and circular roller die drawing after, carry out annealing in process, annealing temperature is 800 ℃～850 ℃, temperature retention time 2 hours;
B8 repeating step B1～B7, difference is roller die A and roller die B are changed into oval roller die and the circular roller die of one group of cylinder core groove diameter and the little specification of minor axis length, carry out next passes of drawing operation of heater silk material, difference is that the placement location of heater silk material among step B2 and the B5 will lean on inwards into 50mm～70mm, inserts Duan Youyi progressive formation to guarantee the red copper fuse;
B9 repeating step B1～B8, until the length at the heater two ends that process is 670mm ± 5mm, diameter is transitioned into 2.4mm ± 0.015mm by 2.8mm ± 0.015mm, and interlude length is 9800mm ± 5mm, when diameter is 2.4mm ± 0.015mm, finish the roll-in drawing procedure;
C pickling: the heater that preparation is finished is put into 25%H
2SO
4+ 25%HNO
3+ H
2O or 35～50%HNO
3+ H
2In the solution of O, soak 1～3 minute under the room temperature after, acid solution is removed in water flushing;
D checks: the heater finished product of making is carried out surface quality, appearance and size, percentage elongation and the inspection of changeover portion adaptation.
Further, aforesaid use rolling die is made the technique that nuclear power station 24KW voltage-stablizer becomes the section heater, wherein, the oval roller die and the circular roller die that roller die A and roller die B are changed into groove radius or the little specification of minor axis described in the step B8, refer in next round roll-in drawing process, change roller die A and roller die B into groove radius or minor axis than the roller die of the little 0.1～0.2mm of a upper cover roller die.
Further, aforesaid use rolling die is made the technique that nuclear power station 24KW voltage-stablizer becomes the section heater, wherein, the circular roller die and the circular roller die that roller die A and roller die B are changed into groove radius or the little specification of minor axis described in the step B8, take turns former that every amplitude of dwindling of taking turns roller die groove radius or minor axis is 0.1mm or 0.2mm in the roll-in drawing procedure, to save the time of technique, every amplitude of dwindling of taking turns roller die groove radius or minor axis is 0.1mm in the roll-in drawing procedure of later several rounds, with the machining shape of better control limit section heater, size and surface quality.
The present invention has following beneficial effect:
1. the rolling die of manufacturing nuclear power station 24KW voltage-stablizer change section heater of the present invention is simple in structure, easy to use;
2. use manufacturing nuclear power station 24KW voltage-stablizer of the present invention to become the manufacturing process of section heater, can produce the change section heater of surface quality, dimensional requirement, percentage elongation and the inspection of changeover portion adaptation of satisfying the instructions for use of nuclear power station 24Kw voltage-stablizer, reach the correlation technique requirement of same kind of products at abroad fully.
Description of drawings
Fig. 1 becomes the rolling die structural representation of section heater for making nuclear power station 24KW voltage-stablizer.
Fig. 2 becomes the rolling die A-A of section heater to structural representation for making nuclear power station 24KW voltage-stablizer.
Wherein: 1-roller die A, 2-roller die B, the 3-cover plate, the 4-pressing plate, 5-depresses handwheel, 6-gripper shoe, 7-screw A, 8-bearing holder (housing, cover), 9-screw B, 10-framework.
The specific embodiment
Below in conjunction with drawings and Examples to further elaborating with the present invention.
Embodiment 1 makes the rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater
As depicted in figs. 1 and 2, make the rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater, comprise roller die A1, roller die B2, cover plate 3, pressing plate 4, depress handwheel 5, gripper shoe 6, screw A7, bearing holder (housing, cover) 8, screw B9, framework 10, wherein roller die A1 and roller die B2 have the roller die that a ring cross-section is semicircle or half elliptic groove for many group cylinders middle part, the major axis of half elliptic groove is 1.7 times of minor axis, every group of roller mill includes the oval roller die of a pair of circular roller die and a pair of and its same specification, the semi-circular recesses diameter of many group rollers mills and and the minor axis of half elliptic groove be kept to gradually 2.4mm from 2.7mm, the diameter of every cover roller die or minor axis are poor to be 0.1mm; Roller die A1 and roller die B2 overall length are 40mm, two ends bossing is that length is the cylinder of 10mm, diameter 12mm about it, Main Function is fixedly roller die and the rotation of assurance roller die in bearing holder (housing, cover), and the middle body of roll partly is the cylinder of length 20mm, diameter 20mm; Roller die A1 and roller die B2 are placed in the framework 10 abreast, and it is fixed between two cover plates 3 on framework both sides 10 about by means of bearing holder (housing, cover) 8 respectively at two ends up and down, by screw A7 will be up and down two cover plates 3 are connected with framework, metal (upper overlaps 8 and is connected connection with cover plate; Between framework 10 left end inboards and roller die A1, gripper shoe 6 is set, between framework 10 right-hand member inboards and roller die B2, pressing plate 4 is set, depress handwheel 5 and be fixed on the right side of pressing plate 4 by screw B9, depress the axle center of the axle center of handwheel 5 and roller die A1 and roller die B2 at grade, and over against circle semicircle or the half elliptic groove at roller die A1 and the upper cylinder of roller die B2 middle part; During use, dimensional requirement according to processing object, the many groups roller die A1 and the roller die B2 that use successively semicircle diameter or half elliptic minor axis length to reduce gradually, depress handwheel 5 by rotation during roll-in and make two semicircles of roller die A1 and roller die B2 or half elliptic groove be merged into circle or ellipse, and the processing object in circle or the ellipse is carried out roll-in.
Embodiment 2
The step of the technique of the rolling die manufacturing nuclear power station 24KW voltage-stablizer change section heater of Application Example 1 assembling is as follows:
The processing of A blank
A1 selects materials: the change section heater technological requirement of processing as required, and selections diameter is 8mm, length is that the Cr20Ni80 alloy bar of 1025mm is as change section heater blank;
A2 boring: boring two diameters along the axle center respectively at steps A 1 selected change section heater blank two ends is the circular hole of 71mm into 5.0mm, the degree of depth;
The A3 cored: the red copper fuse of processing and the steps A 2 specification negative common difference of holing, cleaning packs into after drying becomes in the hole at section heater blank two ends;
A4 swages: lower to swage through 6～10 roads that change section heater blank that steps A 3 is obtained swages as diameter be the heater bar of 4.0mm with revolving the hammer machine at 600 ℃～800 ℃;
The A5 drawing: the heater bar that at room temperature uses wire drawing machine through 2～8 road drawings steps A 4 to be obtained is processed into diameter and is Φ 2.8mm, and length is the heater silk material of 8300mm, and every time intermediate annealing temperature is 800 ℃～850 ℃, insulation 2h.
B roll-in drawing:
B1 assembles oval roller die: the half elliptic groove minor axis length of selecting one group of cylinder core is oval roller die A1 and the oval roller die B2 of 2.7mm, is assembled on the rolling die;
B2 die sinking blowing: depress handwheel 5 by rotation roller die A1 and roller die B2 are separated, the heater silk material that steps A 5 is made is put into the cylinder core half elliptic groove between roller die A1 and the roller die B2, the groove bite of oval roller die A1 and roller die B2 is apart from the about 50～70mm of heater silk material one end, and less than the length of red copper fuse in the steps A 3, its objective is in order to guarantee to become the length dimension requirement of section heater;
The oval roller die drawing of B3: depress handwheel 5 to being clamped in two heater silk material pressurizations in the oval roller die groove by rotation, make the groove of roller die A1 and roller die B2 fully closed, then carry out drawing to the other end direction of heater silk material, finish drawing when pulling to 2/3 left and right sides of heater overall length; Then at other end repeating step B2 and the B3 of heater silk material;
B4 assembles circular roller die: oval roller die drawing is depressed handwheel 5 by rotation and is unloaded oval roller die, circular roller die A1 and the circular roller die B2 of the half elliptic groove minor axis same size of assembling groove diameter and oval roller die after finishing;
B5 die sinking blowing: repeating step B2, die sinking blowing;
The circular roller die drawing of B6: heater silk material is put into the half elliptic groove of the cylinder core between roller die A1 and the roller die B2, placement location carries out drawing with heater silk material with step B2 after axis direction rotates 90 ℃, and the drawing step is with step B3;
B7 finish one take turns oval roller die drawing and circular roller die drawing after, carry out annealing in process, annealing temperature is 800 ℃～850 ℃, temperature retention time 2 hours;
B8 repeating step B1～B7, difference is roller die A1 and roller die B2 are changed into oval roller die and the circular roller die of cylinder core groove diameter a group by a group or the short 0.1mm of minor axis length, carry out next passes of drawing operation of heater silk material, difference is that the placement location of heater silk material among step B2 and the B5 will lean on inwards into 50mm～70mm, inserts Duan Youyi progressive formation to guarantee the red copper fuse;
B9 repeating step B1～B8, until the length at the heater two ends that process is 670mm ± 5mm, diameter is transitioned into 2.4mm ± 0.015mm by 2.8mm ± 0.015mm, and interlude length is 9800mm ± 5mm, when diameter is 2.4mm ± 0.015mm, finish the roll-in drawing procedure.
C pickling: the heater that preparation is finished is put into 25%H
2SO
4+ 25%HNO
3+ H
2In the solution of O, soak under the room temperature after 3 minutes, acid solution is removed in the water flushing.
D checks: the heater finished product of making is carried out surface quality, appearance and size, percentage elongation and the inspection of changeover portion adaptation.
Embodiment 3
The rolling die of Application Example 1 assembling is made voltage-stablizer and is become the processing step of section heater with embodiment 2, the heater diameter of rod that the difference part is to revolve in the steps A 4 after forging is 3mm, the oval roller die groove minor axis length that step B1 selects is 2.9mm, and adjusts accordingly the roller die specification of other operations in roll-in drawing program subsequently.
Embodiment 4
The rolling die of Application Example 1 assembling is made voltage-stablizer and is become the processing step of section heater with embodiment 2, the difference part is that change section heater blank selected among the step B1 is the Cr20Ni80 alloy bar of diameter 9.0mm, length 809mm, diameter in the two ends boring of change section heater blank in the steps A 2 is 56.5mm into 5.0mm, the degree of depth, and processes the red copper fuse of dimension in steps A 3.
Embodiment 5
The rolling die of Application Example 1 assembling is made voltage-stablizer and is become the processing step of section heater with embodiment 2, the difference part is that change section heater blank selected in the steps A 1 is the Cr20Ni80 alloy bar of diameter 10mm, length 656mm, diameter in the two ends boring of change section heater blank in the steps A 2 is 46mm into 5.0mm, the degree of depth, and processes the red copper fuse of dimension in steps A 3.
Claims (8)
1. make the rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater for one kind, it is characterized in that comprising roller die A(1), roller die B(2), cover plate (3), pressing plate (4), depress handwheel (5), gripper shoe (6), bearing holder (housing, cover) (8) and framework (10), roller die A(1 wherein) and roller die B(2) have the roller die that a ring cross-section is semicircle or half elliptic groove for many group cylinders middle part, be placed on abreast in the framework (10), it up and down is fixed in framework (10) up and down between two cover plates (3) on both sides by means of bearing holder (housing, cover) (8) respectively in two ends, inboard and the roller die A(1 at framework (10) left end) between gripper shoe (6) is set, inboard and the roller die B(2 at framework (10) right-hand member) between pressing plate (4) is set, pressing plate (4) right side connects depresses handwheel (5), depress axle center and the roller die A(1 of handwheel (5)) and roller die B(2) the axle center at grade, and over against roller die A(1) and roller die B(2) circle semicircle or the half elliptic groove at upper cylinder middle part.
2. a kind of rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater of making as claimed in claim 1 is characterized in that two cover plates (3) are by screw A(7 up and down) on the vertical direction of rolling die the two ends of bearing holder (housing, cover) (8) are being fixed on the framework (10).
3. a kind of rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater of making as claimed in claim 1 is characterized in that depressing handwheel (5) by screw B(9) be fixed on the right side of pressing plate (4).
4. a kind of rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater of making as claimed in claim 1 is characterized in that roller die A(1) and roller die B(2) the major axis of half elliptic groove be 1.6～2.0 times of minor axis.
5. a kind of rolling die that nuclear power station 24KW voltage-stablizer becomes the section heater of making as claimed in claim 1 is characterized in that every group of roller die A(1) and roller die B(2) the semi-circular recesses diameter or the poor 0.1mm of being of minor axis of half elliptic groove.
6. right to use claim 1 a described rolling die is made the technique that nuclear power station 24KW voltage-stablizer becomes the section heater, may further comprise the steps:
The processing of A blank
A1 selects materials: the change section heater technological requirement of processing as required, and selections diameter is 8～10mm, length is that the Cr20Ni80 alloy bar of 600～1200mm is as change section heater blank;
A2 boring: boring two diameters along the axle center respectively at steps A 1 selected change section heater blank two ends is the circular hole of 40mm～80mm into 5.0mm～7.0mm, the degree of depth;
The A3 cored: the red copper fuse of processing and the steps A 2 specification negative common difference of holing, cleaning packs into after drying becomes in the hole at section heater blank two ends;
A4 swages: lower to swage through 6～10 roads that change section heater blank that steps A 3 is obtained swages as diameter be the heater bar of 3.0～4.0mm with revolving the hammer machine at 600 ℃～800 ℃;
The A5 drawing: it is 2.8～3.0mm that the heater bar that at room temperature uses wire drawing machine through 2～8 road drawings steps A 4 to be obtained is processed into diameter, length is the heater silk material of 8000～9000mm, every time intermediate annealing temperature is 800 ℃～850 ℃, temperature retention time 2h;
B. roll-in drawing:
B1 assembles oval roller die: the half elliptic groove minor axis length of selecting one group of cylinder core is lacked the oval roller die A(1 of 0.1mm than the heater silk material diameter of preparation in the steps A 5) and oval roller die B(2), be assembled on the rolling die;
B2 die sinking blowing: depress handwheel (5) with roller die A(1 by rotation) and roller die B(2) separately, the heater silk material that steps A 5 makes is put into roller die A(1) and roller die B(2) between cylinder core half elliptic groove, oval roller die A(1) and roller die B(2) the groove bite apart from heater silk material one end 50～70mm, and less than the length of red copper fuse in the steps A 3;
The oval roller die drawing of B3: depress handwheel (5) to being clamped in two heater silk material pressurizations in the oval roller die groove by rotation, make roller die A(1) and roller die B(2) groove fully closed, then carry out drawing to the other end direction of heater silk material, finish drawing when pulling to 2/3 left and right sides of heater overall length; Then at other end repeating step B2 and the B3 of heater silk material;
B4 assembles circular roller die: oval roller die drawing is depressed handwheel by rotation and is unloaded oval roller die, the circular roller die A(1 of the half elliptic groove minor axis same size of assembling groove diameter and oval roller die after finishing) and circular roller die B(2);
B5 die sinking blowing: repeating step B2, die sinking blowing;
The circular roller die drawing of B6: heater silk material is put into roller die A(1) and roller die B(2) between the half elliptic groove of cylinder core, placement location is with step B2, heater silk material is carried out drawing after axis direction rotates 90 ℃, the drawing step is with step B3;
B7 finish one take turns oval roller die drawing and circular roller die drawing after, carry out annealing in process, annealing temperature is 800 ℃～850 ℃, temperature retention time 2 hours;
B8 repeating step B1～B7, difference is roller die A(1) and roller die B(2) change oval roller die and the circular roller die of one group of cylinder core groove diameter and the little specification of minor axis length into, carry out next passes of drawing operation of heater silk material, difference is that the placement location of heater silk material among step B2 and the B5 will lean on inwards into 50mm～70mm;
B9 repeating step B1～B8, until the length at the heater two ends that process is 670mm ± 5mm, diameter is transitioned into 2.4mm ± 0.015mm by 2.8mm ± 0.015mm, and interlude length is 9800mm ± 5mm, when diameter is 2.4mm ± 0.015mm, finish the roll-in drawing procedure;
C pickling: the heater that preparation is finished is put into 25%H
2SO
4+ 25%HNO
3+ H
2O or 35～50%HNO
3+ H
2In the solution of O, soak 1～3 minute under the room temperature after, acid solution is removed in water flushing;
D checks: the heater finished product of making is carried out surface quality, appearance and size, percentage elongation and the inspection of changeover portion adaptation.
7. a kind of technique that nuclear power station 24KW voltage-stablizer becomes the section heater of making as claimed in claim 6, it is characterized in that described in the step B8 with roller die A(1) and roller die B(2) change oval roller die and the circular roller die of groove radius or the little specification of minor axis into, refer in the roll-in drawing process of next round roller die A(1) and roller die B(2) change groove radius or minor axis into than the roller die of the little 0.1～0.2mm of a upper cover roller die.
8. a kind of technique that nuclear power station 24KW voltage-stablizer becomes the section heater of making as claimed in claim 6, it is characterized in that in step B8, every amplitude of dwindling of taking turns roller die groove radius or minor axis is 0.1mm or 0.2mm in the roll-in drawing procedure of beginning, carrying out along with drawing process, dwindle every length of taking turns roller die groove radius or minor axis, every amplitude of dwindling of taking turns roller die groove radius or minor axis is 0.1mm in the drawing program of later several rounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910216981 CN102114508B (en) | 2009-12-31 | 2009-12-31 | Rolling mould and process for manufacturing variable section heating body of 24-kW voltage stabilizer in nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910216981 CN102114508B (en) | 2009-12-31 | 2009-12-31 | Rolling mould and process for manufacturing variable section heating body of 24-kW voltage stabilizer in nuclear power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102114508A CN102114508A (en) | 2011-07-06 |
| CN102114508B true CN102114508B (en) | 2013-01-02 |
Family
ID=44213495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910216981 Active CN102114508B (en) | 2009-12-31 | 2009-12-31 | Rolling mould and process for manufacturing variable section heating body of 24-kW voltage stabilizer in nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102114508B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765213A (en) * | 1970-12-17 | 1973-10-16 | British Iron Steel Research | Rolling mills |
| CN2507577Y (en) * | 2001-09-18 | 2002-08-28 | 张光伟 | Prestraightening guide mechanism for hot-rolled ribbed bar reel paying-off straightener |
| CN201040414Y (en) * | 2007-04-16 | 2008-03-26 | 上海泓阳机械有限公司 | Accurate positioning type roller distance adjusting device |
-
2009
- 2009-12-31 CN CN 200910216981 patent/CN102114508B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765213A (en) * | 1970-12-17 | 1973-10-16 | British Iron Steel Research | Rolling mills |
| CN2507577Y (en) * | 2001-09-18 | 2002-08-28 | 张光伟 | Prestraightening guide mechanism for hot-rolled ribbed bar reel paying-off straightener |
| CN201040414Y (en) * | 2007-04-16 | 2008-03-26 | 上海泓阳机械有限公司 | Accurate positioning type roller distance adjusting device |
Non-Patent Citations (1)
| Title |
|---|
| JP昭55-88905A 1980.07.05 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102114508A (en) | 2011-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100496786C (en) | Method for manufacturing titanium base composite pipe-rod materials | |
| CN101716715B (en) | Processing method of titanium and titanium alloy wires | |
| CN102489942B (en) | Manufacturing method for seamless titanium drum for cathode roller | |
| CN105869778B (en) | A kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material | |
| CN105033125A (en) | Titanium alloy equal-thickness thin-wall special-shaped annular piece rolling and expanding composite forming method | |
| CN101352796A (en) | Novel technique for producing mandrel bar | |
| CN101658858B (en) | Cross wedge rolling forming method of hollow shaft head of automobile rear bridge | |
| CN101704035A (en) | Processing method of high-strength titanium alloy thin-walled tube stock | |
| CN101913057A (en) | Production method of low-consumable engine camshaft | |
| CN101850397A (en) | Forging method of large-scale circular cylinder body and three-point anvil adopted by same | |
| CN110976603A (en) | Preparation method of fine-grain titanium cylinder for cathode roller | |
| CN108907619A (en) | A kind of titanium alloy thin wall precision profile combined machining method | |
| CN104128750A (en) | Torsion rod spring manufacturing technology | |
| CN104815861A (en) | Method for forming precise blank of tapered bearing roller, die corresponding to same and manufacturing process of die | |
| CN104625627B (en) | A kind of preparation method of plasma rotating electrode titanium alloy electrode rod | |
| CN102114508B (en) | Rolling mould and process for manufacturing variable section heating body of 24-kW voltage stabilizer in nuclear power plant | |
| CN101428291A (en) | Production process for large weight soldering-free molybdenum wire pole stock | |
| CN105463171A (en) | Manufacturing method for austenitic stainless steel bar used for nuclear power reactor | |
| CN108213845B (en) | Manufacturing method of TA12A special-shaped casing forging | |
| CN108115000A (en) | A kind of manufacturing method and its device of small bore high-precision hairbrush anchor profile shapes | |
| CN109482667B (en) | A kind of preparation method of strong mechanical performance austenitic stainless steel spring silk material | |
| CN102172627B (en) | Composite insulator hardware helical groove skew rolling roll groove design method | |
| CN102161069B (en) | Forming method of no-material-head shaft piece by cross wedge rolling | |
| CN103203599B (en) | A kind of manufacture method of stainless steel hollow screw | |
| US11845124B2 (en) | Roller casting method and system for producing a spiral structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |