CN102361306B - Energy-saving suspension wire clamp - Google Patents
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- CN102361306B CN102361306B CN201110172846XA CN201110172846A CN102361306B CN 102361306 B CN102361306 B CN 102361306B CN 201110172846X A CN201110172846X A CN 201110172846XA CN 201110172846 A CN201110172846 A CN 201110172846A CN 102361306 B CN102361306 B CN 102361306B
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Abstract
The invention discloses an energy-saving suspension wire clamp, which comprises a wire clamp body, a U-shaped screw, a pressing strip and a hanging plate. The energy-saving suspension wire clamp is characterized in that: a wire groove is formed in the wire clamp body; the pressing strip is arranged above a conductor and locked and fixed on the wire clamp body by using the U-shaped screw; the wire clamp body is made of cast steel or cast iron; the hanging plate is made of Q235 steel; the U-shaped screw is made of austenite steel; the pressing strip is made of the austenite steel or aluminum alloy; and the austenite steel comprises 21.5 to 25 weight percent of manganese, 3 to 5 weight percent of aluminum, 2 to 4 weight percent of chromium, 2 to 3 weight percent of vanadium, 0.14 to 0.2 weight percent of carbon, 0.2 to 0.3 weight percent of lanthanum cerium composite rare earth, 0.5 to 0.8 weight percent of silicon, less than 0.05 weight percent of sulfur, less than 0.03 weight percent of nitrogen, less than 0.04 weight percent of phosphorus, and the balance of the cast steel. The energy-saving suspension wire clamp which is produced in the mode is low in energy consumption which is only 10 to 20 percent of that of the conventional wire clamp, has the advantage of high economical efficiency and has a good popularization value.
Description
Technical field
The present invention relates to a kind of electric armour clamp, specifically relate to a kind of energy-saving suspending wire clamp.
Background technology
As far back as the forties in 20th century, abroad just begin gold utensil is tested and studied, Britain graceful Chester university, U.S. Ohio Brass company once carried out the energy consumption contrast test to ferromagnetic gold utensil and aluminium alloy gold utensil, find that the ferromagnetic gold utensil in the circuit is equivalent to a bulb of opening round the clock, annual consumption is surprising, and the aluminium alloy gold utensil does not have energy consumption substantially.China is up to the seventies in last century, because in the power circuit process concerning foreign affairs, foreign side proposes to use energy-conservation gold utensil in specification requirement, just causes the attention of national departments concerned.State Grid builds units such as research institute, Tsing-Hua University, Nanjing Curcuit Appliance Factory, Shanghai line materials factory and carried out experiment test work, test result at that time shows: aluminium alloy gold utensil energy-saving effect is obvious, but the mechanical strength of aluminium alloy gold utensil does not reach the instructions for use of gold utensil, and the cost of aluminium alloy gold utensil makes the popularization of aluminium alloy gold utensil be restricted far above the ferromagnetic gold utensil of tradition.After the reform and opening-up, along with the raising of smelting technique and production technology, the mechanical strength of aluminium alloy gold utensil can satisfy the relevant technologies requirement.Because aluminium alloy gold utensil cost height, only be used for the above transmission line of 500kV at present, and the electric line of 220kV and following grade still adopts bigger cast iron (cast steel) gold utensil of power consumption in a large number, though the circuit one-time investment is little, but at consumed power all the time, cause tremendous loss for country, power grid enterprises, more do not meet the theory of cycle life-cycle construction.
At present, transmission line hardware has used some materials that are different from cast steel (cast iron), as polycarbonate gold utensil, nonmagnetic magnesium iron gold utensil, aluminium alloy gold utensil etc.Poly-carbon polyester gold utensil does not obtain large tracts of land and promotes for factors such as electric network reliability, production costs.Nonmagnetic magnesium iron gold utensil is not because the material processing technique complexity obtains the large tracts of land popularization yet.The aluminium alloy gold utensil only limits to the use of 500kV and above voltage levels circuit at present owing to the cost height.
The reason that causes shortcoming:
1, magnetic hysteresis loss
When passing through alternating current in the lead, cast iron (cast steel) can be subjected to remagnetization, and its magnetic flux density lags behind the variation (magnetic hysteresis of material) of magnetic field intensity.Because the turning to repeatedly of magnetic domain, cause frictional heating between the neticdomain wall (interface between each magnetic domain) and cause energy loss, be i.e. magnetic hysteresis loss.The gold utensil material not simultaneously, the inner magnetic flux density that produces of gold utensil differs greatly, the relative permeability of cast iron, cast steel is 250～1000 times of Fe-Mn austenitic steel, corresponding magnetic flux density also differs 250～1000 times.
2, eddy current loss
When lead passed through electric current, ferromagnetic material can produce induced electromotive force and induced current (eddy current).According to Lenz's law and Faraday's electromagnetic induction law, induced electromotive force is directly proportional with size, the relative permeability of material, material section (thickness and length) by electric current.When identical by electric current, during the gold utensil geometric identity, what influence induced electromotive force is the relative permeability of material.The relative permeability height of ferromagnetic gold utensil, the induced electromotive force of generation is bigger 250～1000 times than Fe-Mn austenitic steel gold utensil, and therefore the eddy current loss that produces is big.
Magnetic hysteresis loss and eddy current loss on gold utensil with interior can form consumption, so the temperature of ferromagnetic gold utensil must exceed much than austenitic steel gold utensil.When room temperature is 5 ℃, common ferromagnetic suspension clamp of series connection and Fe-Mn austenitic steel suspension clamp on the LGJ-240/30 type lead, by the 400A electric current, after 0.5 hour conduction time, the infrared imaging Fig. 1 that takes, find out that from the graph common ferromagnetic wire clamp maximum temperature is 39 ℃, the maximum temperature of Fe-Mn austenitic steel wire clamp is 19.4 ℃.Nearly 20 ℃ of common ferromagnetic wire clamp and the energy-conservation wire clamp temperature difference.In being converted in a large number, electric energy on the circuit can be consumed.
Wherein the Chinese invention patent of CN200610048910.2 discloses a kind of energy-saving suspending wire clamp, has at least parts to adopt the austenitic nonmagnetic steel material to make in wherein said wire clip body, U-shaped screw, press strip and the link plate.Can have comparatively distinct issues like this, austenitic steel is cast as body or press strip, can cause increasing substantially of manufacturing cost.Because after the austenitic steel dissolving, because molten steel is mobile relatively poor, be cast as body or press strip, pore and the dead head of sand mo(u)ld need be amplified, more molten steel can solidify in passage, makes its qualified casting low.
Summary of the invention
Therefore the objective of the invention is to overcome the defective in the existing mode, provide a kind of energy-saving suspending wire clamp at this, for reducing the electric energy loss in the electric line transmission course, (aluminum electrolysis technology is adopted in the production of present domestic aluminium usually to the consumption of non-ferrous metal in minimizing, electrolytic aluminium belongs to the highly energy-consuming industry), be conducive to save social resources, reduce carbon emission, build green environment.
The present invention is achieved in that a kind of energy-saving suspending wire clamp of structure, and this wire clamp has wire clip body, U-shaped screw, press strip and link plate, it is characterized in that: be formed with wire casing in the wire clip body, pass lead by the wire casing in the folder body along the line here,
Described press strip is provided in a side of the lead top and is locked on above-mentioned wire clip body by the U-shaped screw, wherein nut is passed through in the lower end of U-shaped screw, plain washer, spring washer is fixed on the wire clip body, the wire clip body both sides are provided with link plate, link plate is fixed on the body both sides by packing ring and split pin, bolt is also passed through in upper end at described two link plates, wherein said wire clip body adopts cast steel or cast iron to make, described link plate adopts the Q235 steel to make, wherein the U-shaped screw adopts austenitic steel to make, described press strip is made of austenitic steel or aluminium alloy, and described austenitic steel contains by weight percentage:
Manganese 21.5～25%, aluminium 3～5%, chromium 2～4%, vanadium 2～3%, carbon 0.14～0.2%, lanthanum cerium compound rare-earth 0.2～0.3%, silicon 0.5～0.8%, sulphur＜0.05%, nitrogen＜0.03%, phosphorus＜0.04%, all the other are cast steel.
According to a kind of energy-saving suspending wire clamp of the present invention, it is characterized in that: described austenitic steel by weight percentage: manganese: 22～24.6 %, aluminium 3.5～4.8%, chromium 2.3～3.7%, vanadium 2.1～2.9%, carbon 0.14～0.19%, lanthanum cerium compound rare-earth 0.21～0.28%, silicon 0.55～0.78%, sulphur＜0.04%, nitrogen＜0.028%, phosphorus＜0.035%.
According to a kind of energy-saving suspending wire clamp of the present invention, it is characterized in that: described austenitic steel by weight percentage: manganese: 23～24%, aluminium 3.8～4.6%, chromium 2.5～3.5%, vanadium 2.3～2.8%, carbon 0.15～0.18%, lanthanum cerium compound rare-earth 0.24～0.27%, silicon 0.6～0.75%, sulphur＜0.035%, nitrogen＜0.026%, phosphorus＜0.033%.
According to a kind of energy-saving suspending wire clamp of the present invention, it is characterized in that: described austenitic steel is content by weight percentage: manganese: 23%, aluminium 4.0%, chromium 2.5%, vanadium 2.3%, carbon 0.15%, lanthanum cerium compound rare-earth 0.25%, silicon 0.6%, sulphur＜0.035%, nitrogen＜0.026%, phosphorus＜0.033%.
According to a kind of energy-saving suspending wire clamp of the present invention, it is characterized in that: described rare earth element is one or more in lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, the yttrium.
According to a kind of energy-saving suspending wire clamp of the present invention, it is characterized in that: described rare earth element is a kind of in lanthanum and the cerium or 2 kinds.
According to energy-saving suspending wire clamp of the present invention, it is characterized in that: wherein austenitic nonmagnetic steel is finished according to following smelting process:
(1) 10 T pressurization induction furnace is selected in the melting of austenitic steel for use;
(2), be ready to all kinds of raw materials according to above-mentioned formulation weight ratio, earlier cast steel is melted in electric induction furnace, when temperature during near 1600 ℃, add ferromanganese, add ferrochrome, vanadium and rare earth then successively, aluminium adds at last to prevent the scaling loss of crucible, continuing the heating molten steel makes it overheated, when temperature in the stove reaches 1700-1750 ℃, be ready to casting mold, wherein casting mold adopts the water-glass sand oven dry to make, cost is lower, should remove the gred before the casting, want fast during casting, prevent the molten steel oxidation.
A, manganese
Manganese is the main alloy element in the Fe-Mn alloy, and the manganese that adds in steel can make the eutectoid reaction line in the alloy phase diagram descend, and enlarges the austenite phase region, and the stable austenite tissue improves alloy strength.Phosphorus content one timing in the alloy, along with manganese content increases, organizing of steel also further changes austenite gradually into from the pearlite to martensite.By analysis of experiments, the content of manganese is controlled about 21.5～25%, can guarantee the single-phase austenite structure of as cast condition and the suitably a large amount of strain-induced martensite appearance of the distortion unlikely initiation in back.
B, aluminium
Aluminium can hinder carbon atom and spread in austenite, stable carbide.Aluminium easily makes austenite form ordered solid solution, strengthens austenitic stability.The adding of aluminium, very crucial for work hardening and deformation induced martensite in the control course of processing, but must control nitrogen content in the alloy well.Aluminium in the austenitic steel is to improve the non-oxidizability of alloy, the important element of corrosion resistance.The aluminium content that obtains stable austenite structure and excellent mechanical performances is 3～5%.
C, chromium
Chromium can improve the yield strength of steel, can improve non-oxidizability and the corrosion resistance of Fe-Mn base alloy.After the solution treatment, the chromium major part in the carbide is solidly soluted in the austenite, and the chromium atom diffusion velocity is slow, and the reciprocation of it and carbon atom makes the carbon atom diffusion velocity reduce again, so the adding of chromium also can improve austenitic stability.The control of chromium content is advisable 2～4%.
D, vanadium
When austenitic nonmagnetic steel produced deformation in the cold working process, the austenite structure distortion seriously produced the strain-induced martensite tissue, has damaged the nonmagnetic of austenitic steel.In order to improve the stability of austenite structure, guarantee not produce the strain-induced martensite tissue after the austenitic steel deformation, in alloy, add 2～3% vanadium, make it guarantee the no magnetic characteristic of austenitic steel.
E, carbon
Carbon is austenizer, and making Fe-Mn is the austenite expansion of alloy, and stable austenite.On the other hand, carbon has the effect that promotes work hardening, the manganese in alloy, one timing of aluminium content, and alloy strength raises along with phosphorus content and strengthens, but toughness descends thereupon.Take all factors into consideration the pros and cons of carbon, take suitably to improve phosphorus content, allow to have in the tissue a spot of carbide to exist but avoid forming net carbide, with carbon content control under 0.14～0.2%, can not only reduce the addition of manganese like this, and austenitic stability is improved.
F, lanthanum cerium compound rare-earth
Lanthanum cerium compound rare-earth can aggravate the constitutional supercooling phenomenon of alloy graining in austenitic steel, reduce the surface tension of molten steel, improves the crystallization nucleation rate, effectively refine austenite crystal grain.The amount that adds lanthanum cerium compound rare-earth is considered about 0.2～0.3%.
The influence of g, silicon
Silicon main effect in smelting is deoxidation.Silicon is non-carbide former in steel, silicon can reduce carbon in austenite solubility and promote that carbide is separated out in the manganese steel.In steel, add a spot of silicon, can improve the resistivity of material to reduce eddy current.Silicone content should be strict controlled in 0.5～0.8%.
H, nitrogen
Nitrogen is mainly used in enlarging the austenite phase region of steel, is a kind of very strong formation and the element of stable austenite, and its effectiveness is far longer than nickel or manganese.Elements such as the nitrogen on infiltration steel surface and chromium, aluminium, vanadium can be combined to the nitride of stabilizer pole, and nitrogen can be strengthened the solution strengthening effect of austenitic steel.The content of nitrogen in austenitic steel answers＜0.03%.
The influence of i, sulphur, phosphorus
Sulphur in the steel exists with the FeS form.Owing to contain a large amount of manganese in the high ferromanganese, the affinity of manganese and sulphur is greater than iron, thereby the S that can capture among the FeS forms the MnS that is insoluble in the molten steel.
Phosphorus is harmful element in steel.Phosphorus is mainly brought into by the ferromanganese that adds in the smelting process, and the higher phosphorus content that must cause of phosphorus content increases in the ferromanganese.Reduce phosphorus content and mainly start with from improving raw material quality, improve the purity that adds ferromanganese.
Sulphur, phosphorus are little to the effect of magnetic influence of steel alloy under normal conditions, but content when higher because a large amount of eutectiferous generations can make magnetic permeability increase.Therefore, sulphur, phosphorus should be strict controlled in＜below 0.04%.
The invention has the advantages that: energy-saving suspending wire clamp of the present invention, every index satisfy the relevant regulations of electric armour clamp GB/T2315-2000 " electric armour clamp nominal breaking load series form size and bind mode ".The product power consumption is low, and energy consumption has only the 10-20% of traditional wire clamp, has embodied the high advantage of product economy.The smelting aspect: adopt electric induction furnace or basic electric arc furnace melting, it is fast to have firing rate, heat efficiency height, advantage of low energy consumption.
Processing aspect a, wire clip body can adopt cast steel or Cast Iron Production.Sand mo(u)ld adopts shell molding machine to add the hot precoated sand production technology, have sand using amount little, have only 1/3～1/5 of traditional sand mo(u)ld sand using amount; Dust is few, pollutes little to plant area; Molding rate of finished products height; Cast article precision height, smooth surface can effectively reduce advantages such as corona loss.
B, link plate can adopt common Q 235 band steels or steel plate to be stamped to form, and technology is simple, the product quality height.
C, press strip adopt austenitic nonmagnetic steel or aluminium alloy to make, and make as using austenitic nonmagnetic steel, adopt Forging Technology, guarantee the press strip smooth surface, reduce corona loss.As use aluminium alloy to make, and adopting the low temperature casting technique, technology is simple, and smooth surface effectively reduces corona loss.
D, U-shaped screw adopt austenitic nonmagnetic steel to make.With after smelting good steel ingot and being rolled into round steel, cut accordingly, after the punch forming, namely make the U-shaped screw.
Above-mentioned production technology is compared with traditional production technology, and whole production manufacturing process is clean, environmental protection, pollution are little.
Description of drawings
Fig. 1 is the infrared imaging figure that takes.
Fig. 2 is front view of the present invention.
Fig. 3 is end view of the present invention.
Fig. 4 is the energy-conservation test principle figure of energy-conservation wire clamp.
Among the figure: 1, body, 2, U-shaped screw, 3, press strip, 4, link plate, 5, packing ring, 6, split pin, 7, nut, 8, spring washer, 9, plain washer, 10, wire casing, 11, bolt.
Embodiment
Below in conjunction with accompanying drawing invention is made a detailed description:
In the electric power course of conveying, reducing line loss, cutting down the consumption of energy is the problem that electric power is carried research.Gold utensil is the important composition parts of transmission line, because some ferromagnetic or cast iron gold utensil directly contacts with lead, under the action of alternating magnetic field that alternating current produces, produce magnetic hysteresis and eddy current loss and cause the conveying capacity loss, make the electric energy loss of annual several hundred million kwh of generation of electric line.Therefore, developing energy-conservation gold utensil is effective measures and the inevitable direction that reduces line loss.Though aluminium alloy gold utensil energy-saving effect is obvious, the line construction cost of investment is too big, consumes a large amount of aluminium, is unfavorable for building " resource-conserving, environmentally friendly " electric line.Therefore the object of the present invention is to provide a kind of energy-saving suspending wire clamp, both reduced the electric energy loss in the electric line transmission course greatly, (aluminum electrolysis technology is adopted in the production of present domestic aluminium usually to reduce consumption to non-ferrous metal again, electrolytic aluminium belongs to the highly energy-consuming industry), be conducive to save social resources, reduce carbon emission, build green environment.
A kind of energy-saving suspending wire clamp, this wire clamp have wire clip body 1, U-shaped screw 2, press strip 3 and link plate 4.Be formed with wire casing 10 in the wire clip body 1, pass lead by the wire casing 10 in the folder body 1 along the line here, described press strip 3 is provided in a side of the lead top and is locked on above-mentioned wire clip body 1 by U-shaped screw 2, wherein the lower end of U-shaped screw 2 is by nut 7, plain washer 9, spring washer 8 is fixed on the wire clip body 1, wire clip body 1 both sides are provided with link plate 4, link plate 4 is fixed on body 1 both sides by packing ring 5 and split pin 6, upper end at described two link plates 4 is also fixing by bolt 11, wherein said wire clip body 1 adopts cast steel or cast iron to make, described link plate 4 adopts the Q235 steel to make, wherein U-shaped screw 2 adopts austenitic steel to make, and described press strip 3 usefulness austenitic steels or aluminium alloy are made.Described austenitic steel is pressed column weight amount degree and is implemented:
Embodiment 1: described austenitic steel is content by weight percentage: manganese: 23%, and aluminium 3.8%, chromium 2.5%, vanadium 2.3%, carbon 0.15%, lanthanum cerium compound rare-earth 0.24%, silicon 0.6%, sulphur＜0.035%, nitrogen＜0.026%, phosphorus＜0.033%.
Embodiment 2: described austenitic steel is content by weight percentage: manganese: 23%, and aluminium 4.0%, chromium 2.5%, vanadium 2.3%, carbon 0.15%, lanthanum cerium compound rare-earth 0.25%, silicon 0.6%, sulphur＜0.035%, nitrogen＜0.026%, phosphorus＜0.033%.
Embodiment 3: described austenitic steel is content by weight percentage: manganese: 23%, and aluminium 4%, chromium 2.5%, vanadium 2.5 %, carbon 0.15%, lanthanum cerium compound rare-earth 0.25%, silicon 0.6%, sulphur＜0.03%, nitrogen＜0.02%, phosphorus＜0.03%.
Embodiment 4: described austenitic steel is content by weight percentage, manganese: 23%, and aluminium 4%, chromium 2.5%, vanadium 3.0 %, carbon 0.13%, lanthanum cerium compound rare-earth 0.25%, silicon 0.5%, sulphur＜0.03%, nitrogen＜0.02%, phosphorus＜0.028%.
Described rare earth element is one or more in lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, the yttrium.
The smelting process of the austenitic nonmagnetic steel of above-mentioned energy-saving suspending wire clamp is:
(1) 10 T pressurization induction furnace is selected in the melting of austenitic steel for use;
(2), be ready to all kinds of raw materials according to above-mentioned formulation weight ratio, earlier cast steel is melted in electric induction furnace, when temperature during near 1600 ℃, add ferromanganese, add ferrochrome, vanadium and rare earth then successively, aluminium adds at last to prevent the scaling loss of crucible, continuing the heating molten steel makes it overheated, when temperature in the stove reaches 1700-1750 ℃, be ready to casting mold, wherein casting mold adopts the water-glass sand oven dry to make, cost is lower, should remove the gred before the casting, want fast during casting, prevent the molten steel oxidation.In the various raw material that add, contain carbon, silicon, sulphur, phosphorus.Therefore in adding cast steel, select phosphorus content low; In the ferromanganese, select phosphorus content lower; Ferrochrome is selected in the adding of chromium usually, should control its silicon content.Adopt the reason of pressurization induction furnace, be convenient in smelting process, feed nitrogen.
Through detecting every test index of austenitic nonmagnetic steel of the present invention:
Tensile strength 〉=530Mpa, yield strength 〉=300MPa, relative permeability≤1.05
The energy-conservation test of the energy-conservation wire clamp that dangles of the present invention is as follows:
A, test method
According to the 6th regulation among the CQC 3102-2009 " electric armour clamp certification of energy-conserving product technical specification ", adopt differential technique.
Differential technique is under identical condition, total regulated power loss of analog line during the operation of total regulated power loss of analog line and not charged power gold utensil when measuring charged power gold utensil; Both differences are exactly the electric energy loss of this electric armour clamp.Test is certain in ambient temperature, comparatively nonventilated indoor carrying out.Test is arranged and should be avoided other ferromagnetic capable materials to the influence of the electric energy loss of analog line and test piece.The lead of test should be selected the lead identical with the regulation cross section for use.
P=P
∑－P
l
The electric energy loss of P-electric armour clamp
P
∑-the electric energy loss in loop when containing test piece
P
l-the electric energy loss in loop when not containing test piece
Test principle figure such as Fig. 4:
B, testing equipment
The selecting for use of equipment in the test: high-current generation device selects for use the 400A up-flow to become; Wattmeter W selects low-power watt meter, power factor for use
, range is selected 150V*2.5A for use; The CT no-load voltage ratio is: 600/5; The PT no-load voltage ratio is: 75/1.
C, result of the test
According to above-mentioned test and method of measurement, keeping the stabling current of test circuit at a LGJ-240/30 type lead is 240A, the result of the test such as the table 1 that draw:
Wherein: what Sample A was represented is common suspension clamp, and sample B is this energy-conservation suspension clamp, and sample B is better than Sample A as can be known by analysis.
Wherein the energy consumption of energy-saving suspending wire clamp of the present invention is tested, as table 2:
Energy-saving suspending wire clamp of the present invention is carried out handgrip exercise, as table 3:
Wherein the present invention is carried out the failure load test result, as table 4:
Wherein following table 5 is the situation explanation of check:
Wherein be that 200610048910.2 the disclosed a kind of energy-saving suspending wire clamp of Chinese invention patent is made comparison with energy-saving suspending wire clamp of the present invention and the patent No., wherein contrast situation such as following table, table 6:
What wherein first was represented is energy-saving suspending wire clamp of the present invention, and second is the contrast patent,
Because every physical index of first has satisfied the regulation of GB/T2315-2000 fully, improve every physical index of nonmagnetic steel again, only can increase cutting and the punch process difficulty in material later stage.First adopts reasonably prescription in the process of smelting, change the metallographic structure of material, and does not produce strain-induced martensite tissue when guaranteeing material cold working, reduces magnetic permeability, and the generation of restriction induced electromotive force reduces eddy current, the magnetic hysteresis loss of elimination 99%.
Claims (4)
1. energy-saving suspending wire clamp, this wire clamp has wire clip body (1), U-shaped screw (2), press strip (3) and link plate (4), it is characterized in that: be formed with wire casing (10) in the wire clip body (1), pass lead by the wire casing (10) in the folder body along the line (1) here
Described press strip (3) is provided in a side of the lead top and is locked on above-mentioned wire clip body (1) by U-shaped screw (2), wherein the lower end of U-shaped screw (2) is by nut (7), plain washer (9), spring washer (8) is fixed on the wire clip body (1), wire clip body (1) both sides are provided with link plate (4), link plate (4) is fixed on body (1) both sides by packing ring (5) and split pin (6), upper end at described two link plates (4) is also fixing by bolt (11), wherein said wire clip body (1) adopts cast steel or cast iron to make, described link plate (4) adopts the Q235 steel to make, wherein U-shaped screw (2) adopts austenitic steel to make, described press strip (3) is made of austenitic steel or aluminium alloy, and described austenitic steel contains by weight percentage:
Manganese 21.5～25%, aluminium 3～5%, chromium 2～4%, vanadium 2～3%, carbon 0.14～0.2%, lanthanum cerium compound rare-earth 0.2～0.3%, silicon 0.5～0.8%, sulphur＜0.05%, nitrogen＜0.03%, phosphorus＜0.04%, all the other are cast steel;
Wherein austenitic nonmagnetic steel is finished according to following smelting process:
(1) 10 T pressurization induction furnace is selected in the melting of austenitic steel for use;
(2), be ready to all kinds of raw materials according to above-mentioned formulation weight ratio, earlier cast steel is melted in electric induction furnace, when temperature during near 1600 ℃, add ferromanganese, add ferrochrome, vanadium and rare earth then successively, aluminium adds at last to prevent the scaling loss of crucible, continuing the heating molten steel makes it overheated, when temperature in the stove reaches 1700-1750 ℃, be ready to casting mold, wherein casting mold adopts the water-glass sand oven dry to make, cost is lower, should remove the gred before the casting, want fast during casting, prevent the molten steel oxidation.
2. a kind of energy-saving suspending wire clamp according to claim 1, it is characterized in that: described austenitic steel by weight percentage: manganese: 22～24.6 %, aluminium 3.5～4.8%, chromium 2.3～3.7%, vanadium 2.1～2.9%, carbon 0.14～0.19%, lanthanum cerium compound rare-earth 0.21～0.28%, silicon 0.55～0.78%, sulphur＜0.04%, nitrogen＜0.028%, phosphorus＜0.035%.
3. a kind of energy-saving suspending wire clamp according to claim 2, it is characterized in that: described austenitic steel by weight percentage: manganese: 23～24%, aluminium 3.8～4.6%, chromium 2.5～3.5%, vanadium 2.3～2.8%, carbon 0.15～0.18%, lanthanum cerium compound rare-earth 0.24～0.27%, silicon 0.6～0.75%, sulphur＜0.035%, nitrogen＜0.026%, phosphorus＜0.033%.
4. a kind of energy-saving suspending wire clamp according to claim 3, it is characterized in that: described austenitic steel is content by weight percentage: manganese: 23%, aluminium 4.0%, chromium 2.5%, vanadium 2.3%, carbon 0.15%, lanthanum cerium compound rare-earth 0.25%, silicon 0.6%, sulphur＜0.035%, nitrogen＜0.026%, phosphorus＜0.033%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110172846XA CN102361306B (en) | 2011-06-24 | 2011-06-24 | Energy-saving suspension wire clamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110172846XA CN102361306B (en) | 2011-06-24 | 2011-06-24 | Energy-saving suspension wire clamp |
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| Publication Number | Publication Date |
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| CN102361306A CN102361306A (en) | 2012-02-22 |
| CN102361306B true CN102361306B (en) | 2013-08-28 |
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| CN201110172846XA Expired - Fee Related CN102361306B (en) | 2011-06-24 | 2011-06-24 | Energy-saving suspension wire clamp |
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|---|---|
| CN (1) | CN102361306B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311346A (en) * | 2001-02-20 | 2001-09-05 | 上海交通大学 | Nodular eutectic austenite steel base authigenic composite material |
| CN2504807Y (en) * | 2001-09-11 | 2002-08-07 | 江都市曙光电力器材有限公司 | suspension clamp |
| CN1825728A (en) * | 2005-02-24 | 2006-08-30 | 花为淦 | Wire Suspension Clamp |
| WO2009090231A1 (en) * | 2008-01-17 | 2009-07-23 | Technische Universität Bergakademie Freiberg | Parts made of austenitic cast iron having an increased carbon content, methods for the production thereof, and use thereof |
-
2011
- 2011-06-24 CN CN201110172846XA patent/CN102361306B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311346A (en) * | 2001-02-20 | 2001-09-05 | 上海交通大学 | Nodular eutectic austenite steel base authigenic composite material |
| CN2504807Y (en) * | 2001-09-11 | 2002-08-07 | 江都市曙光电力器材有限公司 | suspension clamp |
| CN1825728A (en) * | 2005-02-24 | 2006-08-30 | 花为淦 | Wire Suspension Clamp |
| WO2009090231A1 (en) * | 2008-01-17 | 2009-07-23 | Technische Universität Bergakademie Freiberg | Parts made of austenitic cast iron having an increased carbon content, methods for the production thereof, and use thereof |
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| CN102361306A (en) | 2012-02-22 |
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