CN104786013A - Manufacturing method for nickel board end sockets - Google Patents
Manufacturing method for nickel board end sockets Download PDFInfo
- Publication number
- CN104786013A CN104786013A CN201410042765.1A CN201410042765A CN104786013A CN 104786013 A CN104786013 A CN 104786013A CN 201410042765 A CN201410042765 A CN 201410042765A CN 104786013 A CN104786013 A CN 104786013A
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- end socket
- nickel
- sheet material
- carrying
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- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 60
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000005498 polishing Methods 0.000 claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000005516 engineering process Methods 0.000 claims abstract description 12
- 238000000137 annealing Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 44
- 238000004080 punching Methods 0.000 claims description 32
- 238000007493 shaping process Methods 0.000 claims description 26
- 239000000314 lubricant Substances 0.000 claims description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 20
- 238000007689 inspection Methods 0.000 claims description 15
- 238000005554 pickling Methods 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000002893 slag Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 210000001503 Joints Anatomy 0.000 claims description 5
- 210000002381 Plasma Anatomy 0.000 claims description 5
- 210000003491 Skin Anatomy 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910001018 Cast iron Inorganic materials 0.000 claims description 2
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- 239000011324 bead Substances 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 230000001131 transforming Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 210000001138 Tears Anatomy 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000002522 swelling Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention relates to a metal material machining technology and manufacturing method, in particular to a manufacturing method for nickel board end sockets. The manufacturing method comprises the steps of designing a die; calculating the diameter of an upper die pressure head, the diameter of an outlet of a lower die pull ring, the gap between an upper die and a lower die and the circular bead of the lower die pull ring; splicing nickel boards; carrying out penetrant flaw detection; detecting the hardness; carrying out stress relief annealing processing on the nickel boards; polishing and cleaning the die; carrying out earlier stage processing of blanks; carrying out stamping forming, wherein three-time cold forming is adopted for the forming technology; cutting grooves; carrying out acid dipping; carrying out polishing; carrying out penetrant flaw detection; stacking the end sockets. By means of the method, the stamping process is stable, transformation is even and smooth, a determined hot working system is feasible, the technology parameters are reasonable, control over the dimension of workpieces is good, metal streamline distribution is reasonable, and performance is stable.
Description
Technical field
The present invention relates to a kind of metal material processing technique manufacturing method, particularly a kind of manufacture method of nickel sheet material end socket.
Background technology
Nickel plate is a kind of excellent structural timber, and along with the expansion year by year of its consumption, the application in the processing and manufacturing of various engineering structure and equipment gets more and more.Owing to there is plastic deformation difference when nickel material is shaped, easy to crack, and the shortcoming such as screen resilience is large, make its formed machining more difficult, if method is improper or technique is unreasonable, often cause workpiece to meet technical requirement, be shaped comparatively difficulty, as easy as rolling off a logly causes problems such as tearing during shaping, causes and scrap.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, thus provide a kind of manufacture method of nickel sheet material end socket, punching course is stablized, be out of shape even, smooth and easy, the heat treating regime determined is feasible, and technological parameter is reasonable, workpiece size controls better, and metal streamline distribution is reasonable, stable performance.
According to technical scheme provided by the invention, a kind of manufacture method of nickel sheet material end socket, comprising:
(1), Design of Dies: during Design of Dies, larger factor is affected mainly to forming process and product size: patrix pressure head diameter D
1, counterdie draw ring outlet diameter D
2, the gap Z that upper and lower mould is asked, counterdie draw ring fillet R selects;
Patrix: the end socket after punching press is in cooling procedure, and metal contracts, makes end socket diameter reduce.Therefore, during patrix design, the size of patrix pressure head diameter should suitably be strengthened.Patrix pressure head diameter D
1=Do (1+ ε %), in formula: Do is end socket theoretical diameter, ε is the average shrinkage amount of end socket diameter, gets 0.5 ~ 0.8%.Upper mold materials: cast steel;
Counterdie: main consideration counterdie draw ring outlet diameter D
2with counterdie draw ring fillet R, they ensure the critical size carried out smoothly that is shaped.Counterdie draw ring outlet diameter D
2=D
1+ 2Z, Z are the gap that upper and lower mould is asked.The factor such as amount of swelling on the nominal thickness of blank, the plus tolerance of sotck thinkness and shaping rear head top is depended in the determination of Z value.Size the counting for much to forming quality of Z and R value.Z, R are too small, radial drawing power when making shaping increased, stretch forming difficulty, and the Reducing thickness of workpiece is increased, time serious, cause workpiece to tear.Excessive Z, R, easily cause wrinkling.During design, Z=1.06t, R=(2.5 ~ 3.5) t, t are blank thickness of slab.Lower mold materials: internal mold cast iron, outer moulded steel;
(2), nickel plate splicing: spliced by required nickel plate, splicing sheet material is as the blank of shaping nickel plate end socket, and splicing sheet material must carry out spot welding joint strip in welded joints, and joint strip should to be left a blank the narrow 3 ~ 4mm of width than weld seam, weld seam cladding is soldered completely;
(3), penetrant inspection detects: butt welded seam is two-sided carries out penetrant inspection detection;
(4), hardness determination: nickel sheet material through 100% hardness determination;
(5), nickel plate stress relief annealing process: adopt gas furnace heating, in stove, pad puts corrosion resistant plate, blank enters stove when in-furnace temperature 250 ~ 300 DEG C, then programming rate in stove is controlled at 100 ~ 150 DEG C/h, be warming up to 500 ~ 600 DEG C, blank is through-thickness 1.2 ~ 2.5min/mm in the stove inside holding time, after insulation terminates, makes it naturally cool;
(6), Mold polishing cleaning: before compacting, polishing cleaning is carried out to mould;
(7), blank process in early stage: blank edge polishing cleaning, the oxidation produced when removing periphery gas flame cuttiug and all burrs; Surperficial edge carried out cutting oblique process before blank punching press, angle of splaying is 4 ~ 5 °, and the maximum thickness of pruning of edge is 8% of sotck thinkness; Need nickel sheet material blank surface to clean out before punching press, and apply borosilicate lubricant, the dual coating amount of borosilicate lubricant is: 80 ~ 90g/m
2, during coating, borosilicate lubricant temperature is 4 ~ 26 DEG C;
(8), stamping: forming technology adopts three cold formings, first time cold forming, blank carries out punching press under normal temperature state, 60 ~ 62% of pressing seal head shaping total height, then carries out second time cold forming, and blank carries out punching press under normal temperature state, 73 ~ 75% of pressing seal head shaping total height, then carry out third time cold forming, blank carries out punching press under normal temperature state, 100% of pressing seal head shaping total height;
(9), bevel cut: select plasma cut form to carry out retaining wall on slope, before bevel cut, end socket is calibrated by shape face, determine cutting-height again, bevel cut front head inwall smears limewash, cutting splashing is prevented to be bonded on nickel plate, after bevel cut, polishing light is carried out to groove, remove all cutting residues;
(10), pickling processes: formed head is carried out pickling, remove the dirt such as welding slag, slag, greasy dirt, oxide skin on surface, hydrochloric acid solution is evenly filled end socket outer surface, concentration of hydrochloric acid: 7 ~ 19%, pickling time: 15 ~ 30 minutes, re-use a large amount of clear water to rinse, form one deck passivating film on surface;
(11), polish: the scuffing on end socket and other defect, carry out grinding process;
(12), penetrant inspection detects: to end socket defects detection, be up to the standards product putting in storage;
(13), end socket is stacking: corrugated paper must be used to carry out dottle pin between each end socket between nickel sheet material end socket, prevents jolting and cause the secondary of end socket to scratch in transit.
The invention has the beneficial effects as follows: the manufacture method of a kind of nickel sheet material end socket provided by the invention, punching course is stablized, and is out of shape even, smooth and easy, the heat treating regime determined is feasible, and technological parameter is reasonable, and workpiece size controls better, metal streamline distribution is reasonable, stable performance; Workpiece diameter is consistent with die head diameter, and when punching press, the stickiness of workpiece and mould is good, and the contraction after workpiece punching press is little; Maximum thinning place after component shaping appears at bottom workpiece, and the direction along bottom to upper end diminishes gradually, be about 100mm place at distance workpiece upper end-face edge to start to thicken, its maximum reduction is 9.25%, meets the requirement of reduction≤15% in JB/T4756-2006 " Ni-based ultrafine powder pressing pressure container ".
Accompanying drawing explanation
Fig. 1 is nickel sheet material end socket product schematic diagram.
Fig. 2 is nickel sheet material seal head forming schematic diagram.
In Fig. 2: 1. patrix, 2. nickel sheet material blank, 3. counterdie.Die assembly, on special hydraulic press, is made up of upper die and lower die, and during shaping, nickel sheet material circular blank puts into counterdie top cavity, and the descending extrusion billet of patrix is configured as Seal head blank.
Detailed description of the invention:
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
The present invention is applied to the N6 nickel sheet material end socket of ￠ 1850/60mm specification, and detailed description of the invention is as follows:
(1), Design of Dies: end socket diameter 1850mm, wall thickness 60mm, the formulae discovery patrix pressure head diameter D1 according to technical scheme gets 1859mm, and counterdie draw ring outlet diameter D2 gets 1986mm, the gap Z that upper and lower mould is asked gets 63.6mm, and counterdie draw ring fillet R gets 150mm;
(2), nickel plate splicing: spliced by required nickel plate, splicing sheet material is as the blank of shaping nickel plate end socket, and splicing sheet material must carry out spot welding joint strip in welded joints, and joint strip should to be left a blank the narrow 3mm of width than weld seam, weld seam cladding is soldered completely;
(3), penetrant inspection detects: butt welded seam is two-sided carries out penetrant inspection detection;
(4), hardness determination: nickel sheet material through 100% hardness determination;
(5), nickel plate stress relief annealing process: adopt gas furnace heating, gas heating furnace model 6000 × 5600 × 2500mm, Nanjing Zhengguang Furnace Industry Co., Ltd. of manufacturer.In stove, pad puts corrosion resistant plate, and blank enters stove when in-furnace temperature 250 DEG C, and then controlled by programming rate in stove, at 100 DEG C/h, to be warming up to 500 DEG C, blank is 72min in the stove inside holding time, after insulation terminates, makes it naturally cool;
(6), Mold polishing cleaning: before compacting, polishing cleaning is carried out to mould;
(7), blank process in early stage: blank edge polishing cleaning, the oxidation produced when removing periphery gas flame cuttiug and all burrs; Surperficial edge carried out cutting oblique process before blank punching press, angle of splaying is 4 °, and the maximum thickness of pruning of edge is 4.8mm; Need the removing surface of nickel plate blank material clean before punching press, and apply lubricant, the lubricant of coating is the borosilicate lubricant that Beijing Tianlichuang Glass Technology Development Co., Ltd. produces, and the dual coating amount of borosilicate lubricant is: 80g/m
2, during coating, borosilicate lubricant temperature is 4 DEG C;
(8), stamping: pressing equipment is four-column hydraulic press, model: 1300T, Jiangsu Zhongwei Heavy Industry Machinery Co., Ltd. of manufacturer.Forming technology adopts three cold formings, first time cold forming, blank carries out punching press under normal temperature state, 60% of pressing seal head shaping total height, then carries out second time cold forming, and blank carries out punching press under normal temperature state, 73% of pressing seal head shaping total height, then carry out third time cold forming, blank carries out punching press under normal temperature state, 100% of pressing seal head shaping total height;
(9), bevel cut: select plasma cut form to carry out retaining wall on slope, before bevel cut, end socket is calibrated by shape face, determine cutting-height again, bevel cut front head inwall smears limewash, cutting splashing is prevented to be bonded on nickel plate, after bevel cut, polishing light is carried out to groove, remove all cutting residues;
(10), pickling processes: formed head is carried out pickling, remove the dirt such as welding slag, slag, greasy dirt, oxide skin on surface, hydrochloric acid solution is evenly filled end socket outer surface, concentration of hydrochloric acid: 7%, pickling time: 15 minutes, re-use a large amount of clear water to rinse, form one deck passivating film on surface;
(11), polish: the scuffing on end socket and other defect, carry out grinding process;
(12), penetrant inspection detects: to end socket defects detection, be up to the standards product putting in storage;
(13), end socket is stacking: asking of nickel sheet material end socket must use corrugated paper to carry out dottle pin between each end socket, prevents jolting and cause the secondary of end socket to scratch in transit.
The appearance and size of the N6 nickel sheet material dome head of the ￠ 1850/60mm specification be shaped and wall thickness are measured, the results are shown in following table:
Dimension control and wall thickness measuring result table
The inventive method, punching course is stablized, and be out of shape even, smooth and easy, the heat treating regime determined is feasible, and technological parameter is reasonable, and workpiece size controls better, and metal streamline distributes rationally, stable performance; Workpiece diameter is consistent with die head diameter, and when punching press, the stickiness of workpiece and mould is good, and the contraction after workpiece punching press is little; Maximum thinning place after component shaping appears at bottom workpiece, and the direction along bottom to upper end diminishes gradually, be about 100mm place at distance workpiece upper end-face edge to start to thicken, its maximum reduction is 9.25%, meets the requirement of reduction≤15% in JB/T4756-2006 " Ni-based ultrafine powder pressing pressure container ".
Embodiment 2
The present invention is applied to the N6 nickel sheet material end socket of ￠ 4300/60mm specification, and detailed description of the invention is as follows:
(1), Design of Dies: end socket diameter 4300mm, wall thickness 60mm, the formulae discovery patrix pressure head diameter D1 according to technical scheme gets 4334mm, and counterdie draw ring outlet diameter D2 gets 4461mm, the gap Z that upper and lower mould is asked gets 63.6mm, and counterdie draw ring fillet R gets 210mm;
(2), nickel plate splicing: spliced by required nickel plate, splicing sheet material is as the blank of shaping nickel plate end socket, and splicing sheet material must carry out spot welding joint strip in welded joints, and joint strip should to be left a blank the narrow 4mm of width than weld seam, weld seam cladding is soldered completely;
(3), penetrant inspection detects: butt welded seam is two-sided carries out penetrant inspection detection;
(4), hardness determination: nickel sheet material through 100% hardness determination;
(5), nickel plate stress relief annealing process: adopt gas furnace heating, gas heating furnace model 6000 × 5600 × 2500mm, Nanjing Zhengguang Furnace Industry Co., Ltd. of manufacturer.In stove, pad puts corrosion resistant plate, and blank enters stove when in-furnace temperature 300 DEG C, and then controlled by programming rate in stove, at 150 DEG C/h, to be warming up to 600 DEG C, blank is asked as 150min when stove inside holding, after insulation terminates, makes it naturally cool;
(6), Mold polishing cleaning: before compacting, polishing cleaning is carried out to mould;
(7), blank process in early stage: blank edge polishing cleaning, the oxidation produced when removing periphery gas flame cuttiug and all burrs; Surperficial edge carried out cutting oblique process before blank punching press, angle of splaying is 5 °, and the maximum thickness of pruning of edge is 4.8mm; Need nickel sheet material blank surface to clean out before punching press, and apply lubricant, the lubricant of coating is the borosilicate lubricant that Beijing Tianlichuang Glass Technology Development Co., Ltd. produces, and the dual coating amount of borosilicate lubricant is: 90g/m
2, during coating, borosilicate lubricant temperature is 26 DEG C;
(8), stamping: pressing equipment is four-column hydraulic press, model: 4000T, Jiangsu Zhongwei Heavy Industry Machinery Co., Ltd. of manufacturer.Forming technology adopts three cold formings, first time cold forming, blank carries out punching press under normal temperature state, 62% of pressing seal head shaping total height, then carries out second time cold forming, and blank carries out punching press under normal temperature state, 75% of pressing seal head shaping total height, then carry out third time cold forming, blank carries out punching press under normal temperature state, 100% of pressing seal head shaping total height;
(9), bevel cut: select plasma cut form to carry out retaining wall on slope, before bevel cut, end socket is calibrated by shape face, determine cutting-height again, bevel cut front head inwall smears limewash, cutting splashing is prevented to be bonded on nickel plate, after bevel cut, polishing light is carried out to groove, remove all cutting residues;
(10), pickling processes: formed head is carried out pickling, remove the dirt such as welding slag, slag, greasy dirt, oxide skin on surface, hydrochloric acid solution is evenly filled end socket outer surface, concentration of hydrochloric acid: 19%, ask during pickling: 30 minutes, re-use a large amount of clear water to rinse, form one deck passivating film on surface;
(11), polish: the scuffing on end socket and other defect, carry out grinding process;
(12), penetrant inspection detects: to end socket defects detection, be up to the standards product putting in storage;
(13), end socket is stacking: asking of nickel sheet material end socket must use corrugated paper to carry out dottle pin to asking of each end socket, prevents jolting and cause the secondary of end socket to scratch in transit.
Embodiment 3
The present invention is applied to the N6 nickel sheet material end socket of ￠ 2820/60mm specification, and detailed description of the invention is as follows:
(1), Design of Dies: end socket diameter 2800mm, wall thickness 50mm, according to the formulae discovery patrix pressure head diameter D of technical scheme
1get 2837mm, counterdie draw ring outlet diameter D2 gets 2964mm, and the gap Z that upper and lower mould is asked gets 63.6mm, and counterdie draw ring fillet R gets 180mm;
(2), nickel plate splicing: spliced by required nickel plate, splicing sheet material is as the blank of shaping nickel plate end socket, and splicing sheet material must carry out spot welding joint strip in welded joints, and joint strip should to be left a blank the narrow 3.5mm of width than weld seam, weld seam cladding is soldered completely;
(3), penetrant inspection detects: butt welded seam is two-sided carries out penetrant inspection detection;
(4), hardness determination: nickel sheet material through 100% hardness determination;
(5), nickel plate stress relief annealing process: adopt gas furnace heating, gas heating furnace model 6000 × 5600 × 2500mm, Nanjing Zhengguang Furnace Industry Co., Ltd. of manufacturer.In stove, pad puts corrosion resistant plate, and blank enters stove when in-furnace temperature 280 DEG C, and then controlled by programming rate in stove, at 120 DEG C/h, to be warming up to 550 DEG C, blank is through-thickness 120min/mm in the stove inside holding time, after insulation terminates, makes it naturally cool;
(6), Mold polishing cleaning: before compacting, polishing cleaning is carried out to mould;
(7), blank process in early stage: blank edge polishing cleaning, the oxidation produced when removing periphery gas flame cuttiug and all burrs; Surperficial edge carried out cutting oblique process before blank punching press, angle of splaying is 4.5 °, and the maximum thickness of pruning of edge is 4.8mm; Need nickel sheet material blank surface to clean out before punching press, and apply lubricant, the lubricant of coating is the borosilicate lubricant that Beijing Tianlichuang Glass Technology Development Co., Ltd. produces, and the dual coating amount of borosilicate lubricant is: 85g/m
2, during coating, borosilicate lubricant temperature is 15 DEG C;
(8), stamping: pressing equipment is four-column hydraulic press, model: 1300T, Jiangsu Zhongwei Heavy Industry Machinery Co., Ltd. of manufacturer.Forming technology adopts three cold formings, first time cold forming, blank carries out punching press under normal temperature state, 61% of pressing seal head shaping total height, then carries out second time cold forming, and blank carries out punching press under normal temperature state, 74% of pressing seal head shaping total height, then carry out third time cold forming, blank carries out punching press under normal temperature state, 100% of pressing seal head shaping total height;
(9), bevel cut: select plasma cut form to carry out retaining wall on slope, before bevel cut, end socket is calibrated by shape face, determine cutting-height again, bevel cut front head inwall smears limewash, cutting splashing is prevented to be bonded on nickel plate, after bevel cut, polishing light is carried out to groove, remove all cutting residues;
(10), pickling processes: formed head is carried out pickling, remove the dirt such as welding slag, slag, greasy dirt, oxide skin on surface, hydrochloric acid solution is evenly filled end socket outer surface, concentration of hydrochloric acid: 15%, pickling time: 20 minutes, re-use a large amount of clear water to rinse, form one deck passivating film on surface;
(11), polish: the scuffing on end socket and other defect, carry out grinding process;
(12), penetrant inspection detects: to end socket defects detection, be up to the standards product putting in storage;
(13), end socket is stacking: asking of nickel sheet material end socket must use corrugated paper to carry out dottle pin between each end socket, prevents jolting and cause the secondary of end socket to scratch in transit.
Claims (1)
1. a manufacture method for nickel sheet material end socket, is characterized in that manufacture method comprises:
(1), Design of Dies: patrix pressure head diameter D
1, counterdie draw ring outlet diameter D
2, the gap Z that upper and lower mould is asked, counterdie draw ring fillet R determines according to following formula:
Patrix pressure head diameter D
1=Do (1+ ε %), numerical value rounds, unit: mm.Upper mold materials: cast steel;
Counterdie draw ring outlet diameter D
2=D
1+ 2Z, numerical value rounds, unit: mm.Lower mold materials: internal mold cast iron, outer moulded steel;
Z=1.06t, unit: mm;
R=(2.5 ~ 3.5) t, unit: mm;
In formula: Do is end socket theoretical diameter, unit: mm;
ε is the average shrinkage amount of end socket diameter, gets 0.5 ~ 0.8%;
T is blank thickness of slab, and actual numerical value rounds, unit: mm;
(2), nickel plate splicing: spliced by required nickel plate, splicing sheet material is as the blank of shaping nickel plate end socket, and splicing sheet material must carry out spot welding joint strip in welded joints, and joint strip should to be left a blank the narrow 3 ~ 4mm of width than weld seam, weld seam cladding is soldered completely;
(3), penetrant inspection detects: butt welded seam is two-sided carries out penetrant inspection detection;
(4), hardness determination: nickel sheet material through 100% hardness determination;
(5), nickel plate stress relief annealing process: adopt gas furnace heating, in stove, pad puts corrosion resistant plate, blank enters stove when in-furnace temperature 250 ~ 300 DEG C, then programming rate in stove is controlled at 100 ~ 150 DEG C/h, be warming up to 500 ~ 600 DEG C, blank is asked when stove inside holding as through-thickness 1.2 ~ 2.5min/mm, after insulation terminates, makes it naturally cool;
(6), Mold polishing cleaning: before compacting, polishing cleaning is carried out to mould;
(7), blank process in early stage: blank edge polishing cleaning, the oxidation produced when removing periphery gas flame cuttiug and all burrs; Surperficial edge carried out cutting oblique process before blank punching press, angle of splaying is 4 ~ 5 °, and the maximum thickness of pruning of edge is 8% of sotck thinkness; Need nickel sheet material blank surface to clean out before heating, and apply borosilicate lubricant, the dual coating amount of borosilicate lubricant is: 80 ~ 90g/m
2, during coating, borosilicate lubricant temperature is 4 ~ 26 DEG C;
(8), stamping: forming technology adopts three cold formings, first time cold forming, blank carries out punching press under normal temperature state, 60 ~ 62% of pressing seal head shaping total height, then carries out second time cold forming, and blank carries out punching press under normal temperature state, 73 ~ 75% of pressing seal head shaping total height, then carry out third time cold forming, blank carries out punching press under normal temperature state, 100% of pressing seal head shaping total height;
(9), bevel cut: select plasma cut form to carry out retaining wall on slope, before bevel cut, end socket is calibrated by shape face, determine cutting-height again, bevel cut front head inwall smears limewash, cutting splashing is prevented to be bonded on nickel plate, after bevel cut, polishing light is carried out to groove, remove all cutting residues;
(10), pickling processes: formed head is carried out pickling, remove the dirt such as welding slag, slag, greasy dirt, oxide skin on surface, hydrochloric acid solution is evenly filled end socket outer surface, concentration of hydrochloric acid: 7 ~ 19%, pickling time: 15 ~ 30 minutes, re-use a large amount of clear water to rinse, form one deck passivating film on surface;
(11), polish: the scuffing on end socket and other defect, carry out grinding process;
(12), penetrant inspection detects: to end socket defects detection, be up to the standards product putting in storage;
(13), end socket is stacking: asking of nickel sheet material end socket must use corrugated paper to carry out dottle pin between each end socket, prevents jolting and cause the secondary of end socket to scratch in transit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042765.1A CN104786013A (en) | 2014-01-21 | 2014-01-21 | Manufacturing method for nickel board end sockets |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042765.1A CN104786013A (en) | 2014-01-21 | 2014-01-21 | Manufacturing method for nickel board end sockets |
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|---|---|
| CN104786013A true CN104786013A (en) | 2015-07-22 |
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| CN201410042765.1A Pending CN104786013A (en) | 2014-01-21 | 2014-01-21 | Manufacturing method for nickel board end sockets |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364429A (en) * | 2015-12-23 | 2016-03-02 | 常州旷达威德机械有限公司 | Manufacturing method of thick-walled two-phase stainless steel gland |
| CN105414902A (en) * | 2015-12-22 | 2016-03-23 | 河南神州重型封头有限公司 | Manufacturing method of closure head of nuclear equipment |
| CN113324459A (en) * | 2021-04-22 | 2021-08-31 | 武汉钢铁有限公司 | Method for detecting surface scratches of casting blank |
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| CN113324459A (en) * | 2021-04-22 | 2021-08-31 | 武汉钢铁有限公司 | Method for detecting surface scratches of casting blank |
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