CN106825414A - A kind of manufacture method of high-voltage switch gear electric conductor - Google Patents

Abstract

A kind of manufacture method of high-voltage switch gear electric conductor, belongs to high-voltage electrical equipment field, comprises the following steps：The shape and structure fabrication mould of the electric conductor for the 1, making as required, and be combined assembling after be placed on making scene；2nd, in heating mould and melt and cast in the mould of step 1 aluminium alloy；3rd, mould and casting metals are cooled down；4th, mould is opened, the electric conductor casting of cooling shaping is removed from the molds, core is removed；5th, cast gate and rising head are removed, deburring polishes its surface；With easy to process, efficiency high, the characteristics of save raw material.

Description

A kind of manufacture method of high-voltage switch gear electric conductor

Technical field

The invention belongs to high-voltage electrical equipment field, the manufacturing of more particularly to a kind of electric conductor for high-voltage switch gear Method.

Background technology

High-voltage switch gear, generally refers to rated voltage 3kV and the above is mainly used in opening and disconnecting the electrical equipment of galvanic circle, is Important control element in project of transmitting and converting electricity, in high-voltage switch gear, because the electric current by its element is big, element is needed with interelement Want conductor to be attached, usual these conductors in order to adapt to high-voltage switch gear structure needs, it is necessary to be fabricated to it is variously-shaped, while The element for ensureing electric conductor and other high-voltage switch gears in need by good connection, with the electric conductivity and reliable operation that have ensured Property；In order to reduce resistance during conducting, improve conductive capability, existing electric conductor mostly using the electric conductivities such as copper or aluminium compared with Good metal is made, and is generally all that the shaping that forges under mould is carried out using copper or aluminum metal, or using welding and It uses the metal bar to carry out machining completion, and such defect is to forge that Mold Making is difficult, and service life is short, forges After still need part be machined, while can not suitable shapes and the especially complex situation of structure；Welding is mach Method wastes metal material, and high cost, processing technology is complicated, weld defect easily occurs, influences performance, production efficiency It is low.

The content of the invention

For problem present in the production of existing high-voltage switch gear electric conductor, because the species of electric conductor is more, the present invention Signified electric conductor refers to and the electric conductor shown by accompanying drawing 1；This electric conductor includes upper end, upper changeover portion, stage casing, lower transition Section, lower end, pin-and-hole；The ducted body being made up of aluminum alloy materials；For the electric conductor of this kind of power transmission and transformation high-voltage switch gear, the present invention is carried Go out a kind of manufacture method of high-voltage switch gear electric conductor, it is characterised in that：Comprise the following steps：1st, the electric conductor for making as required Shape and structure fabrication mould, and be combined assembling after be placed on making scene；2nd, mould is heated and by aluminum alloy melt In changing and casting in the mould of step 1；3rd, mould and casting metals are cooled down；4th, mould is opened, cooling shaping is removed from the molds Electric conductor casting, remove core；5th, cast gate and rising head are removed, deburring polishes its surface.

Casting die in described step 1 is the electric conductor particular manufacturing craft, it is characterised in that：It is made of steel, is wrapped Include mold, rising head, cast gate, lower mould, fastener, positioner, core；Described mold is made up of steel, with Mould coordinates alignment；Described rising head is arranged on phase the same side side of the faying face of mold and lower mould, and same with cast gate Side, connects with dies cavity；Described cast gate is arranged on phase the same side side of the faying face of mold and lower mould, with mould Inner space；Described lower mould is made up of steel, cooperation of being alignd with mold；Described fastener has multiple, is arranged on On mold and lower mould, connected respectively at mold and lower mould, the mold after alignment and lower mould can be fixed one Rise；Described positioner has multiple, is separately positioned on the faying face of mold and lower mould, can be by mold and lower mould Tool is relatively fixed on the basis of faying face, can limit the tangential movement of mold and lower mould；Described core is arranged on upper Between mould and lower mould, and positioned at mold and lower dies cavity；The two ends of core and mold and the type of lower dies cavity Core mounting structure is connected.

Described mold, it is characterised in that：Including supporting plate, upper die body, half cast gate, positioner, fastener is worn Hole, core installation position, upper cavity, overflow circulation road, erects overflow ducts, fastener screwed hole, half rising head, interface channel；Institute The supporting plate stated is arranged on upper die body, is platy structure positioned at half rising head one end, and both sides are concordant with upper die body；Described is upper Die body makes for steel, and its outer shape is adapted with the curved shape of electric conductor；Half described cast gate is arranged on upper die body Side, into half pyramid-shaped cavity, it is more than the size positioned at die cavity one end in the side edge size of upper die body, and it is located at supporting plate Side is recess side, is opening positioned at upper cavity side, and its opening size is identical with half gate size on lower mould；Described Positioner is conical protrusions, is matched with the conical positioning aperture on lower mould, and its position is recessed with positioning on lower mould Hole is corresponding；Described fastener perforation is arranged on upper die body, is through hole, and fastener can be made to pass through inside it, Its position is corresponding with the fastener screwed hole in lower mold body；Described core installation position is arranged on upper cavity two ends, its shape Match with the installation position of core end with size；Described upper cavity is arranged on upper die body, its shape and size with lead The shape and size of electric body are identical according to the separate half in geometrically symmetric face；Described upper cavity is recess, is connected with half cast gate It is logical, and be connected with brimming circulation road by interface channel；Described brimming circulation road is arranged on the bottom of upper cavity, by connection Passage is connected with upper cavity, and is connected with perpendicular overflow ducts；Described perpendicular overflow ducts are arranged on half rising head bottom, positioned at upper mould One end of body, its top connects with half rising head, and bottom connects with brimming circulation road；Described brimming circulation road and perpendicular overflow ducts Be open-type channel-shaped, and with the brimming circulation road in lower mold body and perpendicular overflow ducts are corresponding cooperatively forms closed channel；Institute The fastener screwed hole stated is arranged on upper die body the die cavity one side positioned at supporting plate one end, on its position and lower mold body Fastener perforation correspondence；Half described rising head is arranged on upper die body, is half-cone open-ended cavity positioned at half cast gate side, Its underpart is connected with perpendicular overflow ducts, and its size and dimension is matched with half rising head in lower mold body；Described interface channel is set Between upper cavity and brimming circulation road, two ends connect respectively at upper cavity with brimming circulation road.

Described lower mould, it is characterised in that：Including supporting plate, lower mold body, half cast gate, half rising head, fastener is perforated, Location hole, erects overflow ducts, and overflow circulation road, lower mode cavity, core installation position, fastener screwed hole；Described supporting plate sets Put in lower mold body, positioned at half rising head opposite end, both sides and end face are concordant with lower mold body side, are platy structure, with Die body is vertically connected；Described lower mold body is that steel make, and is bending tabular, the curved shape phase of its outer shape and electric conductor Adapt to；Half described cast gate is arranged on the side of lower mold body, and into half pyramid-shaped cavity, it is more than in the side edge size of lower mold body Positioned at the size of die cavity one end, it is located at supporting plate direction side for recess side, is opening, its open-mouth ruler positioned at lower mode cavity side It is very little identical with half gate size on mold；Half described rising head is arranged in lower mold body, and half cast gate positioned at lower mold body is same Side, is half-cone open-ended cavity, and its underpart connects with perpendicular overflow ducts, half rising head on its size and dimension and upper die body Match somebody with somebody；Described fastener perforation is arranged in lower mold body, is through hole, fastener can be made to pass through inside it, its position It is corresponding with the fastener screwed hole on upper die body；Described location hole is arranged on the lower mode cavity side of lower mold body, is cone Hole, its size and dimension and position match with the positioner on upper die body；Described perpendicular overflow ducts are arranged on half rising head Bottom, positioned at one end of lower mold body, its top connects with half rising head, and bottom connects with brimming circulation road；Described brimming circulation Road is arranged on the bottom of lower mode cavity, is connected with perpendicular overflow ducts；Described lower mode cavity is arranged in lower mold body, its shape and size It is identical according to the half that geometrically symmetric face separates with the shape and size of electric conductor and constitute electric conductor after merging with upper cavity Outer shape；Described lower mode cavity is recess, is connected with half cast gate；Described core installation position is arranged on lower mode cavity two ends, Its shape and size matches with the installation position of core end；Described brimming circulation road and perpendicular overflow ducts is open-type Channel-shaped, and with the brimming circulation road on upper die body and perpendicular overflow ducts are corresponding cooperatively forms closed channel；Described fastening dress Put screwed hole and be arranged in lower mold body the die cavity one side for being located at supporting plate one end, its position is worn with the fastener on upper die body Hole correspondence.

Described core, it is characterised in that：Including upper end, bearing pin, upper changeover portion, stage casing, lower changeover portion, lower end；It is described Upper end diameter be equal to the electric conductor upper end diameter of bore, its length be equal to electric conductor upper end length add core installation position Length；Described bearing pin is arranged on changeover portion, and identical with the bearing pin hole site on the electric conductor, diameter is identical；It is described Upper changeover portion be arranged between upper end and stage casing, the upper changeover portion internal via shape and size of its shape and size and the electric conductor It is identical；Described stage casing is arranged between changeover portion and lower changeover portion, and its shape and size is interior with the stage casing of the electric conductor Hole size and dimension is identical；Described lower changeover portion is arranged between stage casing and lower end, its shape and size and the electric conductor The hole size of lower changeover portion is identical with shape；Described lower end is arranged on one end of lower changeover portion, its size and the electric conductor Lower end hole size it is identical, its length be equal to the electric conductor lower end in hole length plus lower end installation position length sum.

Beneficial effect

The beneficial effects of the present invention are easy to process, efficiency high saves raw material.

Brief description of the drawings

Fig. 1 is a kind of structural representation of the electric conductor of high-voltage switch gear

A. upper end, the upper changeover portions of B., C. stage casings, changeover portion under D., E. lower ends, F. pin-and-holes.

Fig. 2 is a kind of structural representation of the manufacture mould of high-voltage switch gear electric conductor

1. mold, 2. rising head, 3. cast gate, 4. plays mould, 5. fastener.

Fig. 3 is a kind of structural representation of the mold of the manufacture mould of high-voltage switch gear electric conductor

11. supporting plates, 12. upper die bodies, 13. half cast gates, 14. positioners, the perforation of 15. fasteners, 16. core installation positions, 17. upper cavities, 18. brimming circulation roads, 19. perpendicular overflow ducts, 110. fastener screwed holes, 111. half rising heads, 112. connections Passage.

Fig. 4 is a kind of structural representation of the lower mould of the manufacture mould of high-voltage switch gear electric conductor

41. supporting plates, 42. lower mold bodies, 43. half cast gates, 44. half rising heads, the perforation of 45. fasteners, 46. location holes, 47. is perpendicular excessive Circulation road, 48. brimming circulation roads, 49. lower mode cavities, 410. core installation positions, 411. fastener screwed holes.

Fig. 5 is a kind of structural representation of the core of the manufacture mould of high-voltage switch gear electric conductor

61. upper ends, 62. bearing pins, changeover portion on 63., 64. stage casings, 65. times changeover portions, 66. lower ends.

Specific embodiment

In order to further illustrate technical scheme, in conjunction with brief description of the drawings specific embodiment of the invention；Such as Fig. 1, with the external diameter of electric conductor is 80 millimeters in this example, 60 millimeters of diameter of bore, as a example by pin-and-hole F is 16 millimeters of through-hole diameter；Such as Fig. 5, selects 61 a diameter of 60 millimeters of upper end in this example, the upper end A that length is equal to electric conductor adds 40 millimeters as the upper of core End installation position；From 82 millimeters of 16 mm length of diameter bearing pin as bearing pin 62, be installed in and pin-and-hole F on electric conductor Corresponding position, is symmetrically distributed on the upper changeover portion 63 of core, i.e., bearing pin 62 expose core external diameter length it is identical；From The external diameter of section 63 is crossed for 60 millimeters, shape is identical with the upper changeover portion B internal via shapes of electric conductor, and length is identical, one end and upper end 61 integration connections, lower end is connected with stage casing 64；External diameter from stage casing 64 is 60 millimeters, and length is with the stage casing C's of electric conductor Interior hole length is identical, one end connection integrated with upper changeover portion 63, lower end connection integrated with lower changeover portion 65；From lower transition The external diameter of section 65 is 60 millimeters, and the interior hole length that length is equal to the lower changeover portion D of electric conductor is identical, by its one end and stage casing 64 1 Bodyization is connected, lower end connection integrated with lower end 66；From a diameter of 60 millimeters of lower end 66, length is equal to the lower end of electric conductor The length of E adds 40 millimeters of lower end installation positions as core；Whole core is used using the core material of clay-bonded sand casting Core box is made；This completes the implementation of core.

Such as Fig. 4,300 millimeters of 20 mm in width of thickness is selected in this example, the steel plate of 200 millimeters of height as supporting plate 41, One end is hanging, and the other end is vertical with lower mold body 42 to be connected, it would however also be possible to employ the material with the one of lower mold body 42 processes supporting plate 41 profile；From 60 millimeters of thickness, 300 millimeters of width, 470 millimeters of length, and with electric conductor geometry interface curved shape Close steel plate is used as lower mold body 42；From 105 millimeters of the width suitable for reading of half cast gate 43 in this example, 50 millimeters of depth, lower mouth is wide 70 millimeters of degree, 10 millimeters of depth, 120 millimeters of height, width and length intersection use arc transition just, and are disposed at down The side of lower mode cavity 49 of die body 42；Upper port radius in this example from half rising head 44 are 40 millimeters, 10 millimeters of lower port radius, height 44 millimeters, and it is disposed at the side of lower mode cavity 49 of lower mold body 42 one end relative with half cast gate 43；From fastening in this example A diameter of 30 millimeters of device perforation 45, select two, the fixing device screwed hole 110 on its position and upper die body 12 in this example It is corresponding；From 30 millimeters of the mouth diameters of location hole 46,20 millimeters of depth, 3 ° of taper, its position and upper die body 12 in this example On positioner 14 it is corresponding；From 20 millimeters of the width of perpendicular overflow ducts 47 in this example, 10 millimeters of depth is disposed at The lower section of half rising head 44 simultaneously connects with half rising head 44, and its lower end connects with brimming circulation road 48；From the circulation road that overflows in this example 20 millimeters of 48 width, 280 millimeters of length is disposed at the bottom of lower mode cavity 49, and the length direction of lower mode cavity 49 is consistent, and one End connects with perpendicular overflow ducts 47；In lower mold body 42, dig out and electric conductor half portion profile identical cavity, its size and structure It is identical according to the half in geometrically symmetric face with electric conductor, as lower mode cavity 49, core installation position is set at the two ends of lower mode cavity 49 410,30 millimeters of the radius of core installation position 410,40 millimeters of length, its direction is identical with the end of lower mode cavity 49；Selected in this example The size of fastener screwed hole 411 is the regular screw threads M12 for meeting national standard, and 30 millimeters of depth selects two in this example Fastener screwed hole 411, is arranged on the side of lower mode cavity 49 of lower mold body 42, and positioned at the one end of supporting plate 41, its position and Away from corresponding with the fastener perforation 15 on upper die body 12；This completes the implementation of lower mould 4.

Such as Fig. 3,300 millimeters of 20 mm in width of thickness is selected in this example, the steel plate of 200 millimeters of height as supporting plate 11, One end is hanging, and the other end is vertical with upper die body 12 to be connected, it would however also be possible to employ the material with the one of upper die body 12 processes supporting plate 11 profile；From 60 millimeters of thickness, 300 millimeters of width, 470 millimeters of length, and with electric conductor geometry interface curved shape Close steel plate is used as upper die body 12；From 105 millimeters of the width suitable for reading of half cast gate 13 in this example, 50 millimeters of depth, lower mouth is wide 70 millimeters of degree, 10 millimeters of depth, 120 millimeters of height, width and length intersection use arc transition, and are disposed at mould The side of upper cavity 17 of body 12；Upper port radius in this example from half rising head 111 are 40 millimeters, 10 millimeters of lower port radius, height 44 millimeters and the side of upper cavity 17 of upper die body 12 is disposed at, positioned at the opposite side of half cast gate 13；From fastening in this example Device perforation a diameter of 30 millimeters of 15, selects two in this example, the phase of fixing device screwed hole 411 in position and lower mold body 42 Correspondence；It is recessed as core from the semicolumn that 40 millimeters of 30 mm length of radius is set at the both ends of upper cavity 17 in this example Installation position 16, core installation position 16 is arranged on the two ends of upper cavity 17；Used on upper die body 12 in this example, dug out and conduction Body half portion profile identical cavity, its size and structure and electric conductor are according to the symmetrical with lower mode cavity 49 another of geometrically symmetric face Half is identical, and used as upper cavity 17, its position is upper cavity 17 and lower mode cavity 49 when upper die body 12 and the alignment of lower mold body 42 are fastened Fasten and formed and electric conductor profile and size identical cavity；From 20 millimeters of the width of the circulation road 18 that overflows, length in this example 280 millimeters, the bottom of upper cavity 17 is disposed at, its length direction is consistent with the length direction of upper cavity 17, middle part and company Connect road 112 to connect, one end connects with perpendicular overflow ducts 19；From 20 millimeters of the width of perpendicular overflow ducts 19, depth in this example 10 millimeters, it is disposed at the lower section of half rising head 111 and is connected with half rising head 111, its lower end connects with brimming circulation road 18；This Size in example from fastener screwed hole 110 is the regular screw threads M12 for meeting national standard, 30 millimeters of depth, in this example From two fastener screwed holes 110, the side of upper cavity 17 of upper die body 12 is arranged on, and positioned at the one end of supporting plate 11, its Position and spacing are corresponding with the fastener perforation 45 in lower mold body 42；From the milli of width 20 of interface channel 112 in this example Rice, 8 millimeters of depth, one end is connected with upper cavity 17, and the other end is connected with brimming circulation road 18；From two streams that overflow in this example Passage 18, respectively positioned at the middle part of upper cavity 17, be arranged in parallel；This completes the implementation of mold 1.

Such as Fig. 2, from the bolt for meeting national standard with pad in this example, used as fastener 5, its screw thread is state Family standard M12, washer diameter is more than 30 millimeters；Core is placed in the upper cavity 17 of mold 1, the two ends of core are distinguished The position of the core installation position 16 at the two ends of upper cavity 17 is placed in, mold 1 and lower mould 2 is fastened, by mold 1 during fastening On positioner 14 fastened with the location hole 46 on lower mould 4, and the support on support plate 1 and lower mould 4 on mold 1 Plate 4 is located at different ends, and by the fastener perforation 15 respectively from mold 1 or lower mould 4 of fastener 5, fastener is worn Passed through in hole 45, fastener screwed hole 110 or fastener screwed hole 411 on precession mold 1 or lower mould 4, and Mold 1 and lower mould 4 are fixed together, now, half cast gate 13 and half cast gate 43 are combined to form cast gate 3, half rising head 111 It is combined to form rising head 2 with half rising head 44, while perpendicular overflow ducts 19,47 and brimming circulation road 18,48 and interface channel 112 Composition overflow ducts, connect with die cavity and rising head；This completes the implementation of casting die.

Using when, by casting die be placed on casting scene, will melt meet electric conductor part material requirement aluminium close Gold fusing, injects from the cast gate 3 of casting die, and metal liquid enters in die cavity from cast gate 3, fills die cavity, in order to prevent can not Die cavity is filled, unnecessary metal liquid is overflowed by overflow ducts, and then is overflowed from rising head 2, when finding to have metal liquid from emitting When mouth 2 overflows, casting process is just completed；By casting die and interior metal liquid cooling, after metal liquid cooled and solidified, Take fastener 5 apart, mold 1 and lower mould 4 are separated, the metallic object of solidification is taken out, due to the effect of core, in metallic object It is internally formed and electric conductor inside identical internal via shape and physical dimension；Gate portions and overflow outside the conductive shape of removal The metal of channel part, removes core, because core is made up of compositions such as clays, is smashed and can just removed core Remove, metal body surface is polished, be formed electric conductor part, this completes implementation of the invention；As a result of pouring Casting method, can adapt to the complicated shape and structure of electric conductor, save metal material, and production efficiency is high.

Claims (1)

1. a kind of manufacture method of high-voltage switch gear electric conductor, it is characterised in that：Comprise the following steps：1st, what is made as required leads The shape and structure fabrication mould of electric body, and be combined assembling after be placed on making scene；2nd, mould is heated and closes aluminium Financeization simultaneously casts in the mould of step 1；3rd, mould and casting metals are cooled down；4th, mould is opened, cooling is removed from the molds The electric conductor casting of shaping, removes core；5th, cast gate and rising head are removed, deburring polishes its surface.