Electric furnace conductive cross arm electrode chuck and manufacturing method thereof

Abstract

The invention discloses an electric furnace conductive cross arm electrode chuck and a manufacturing method thereof.The manufacturing method of the electric furnace conductive cross arm electrode chuck comprises the steps that S1, a copper plate which is formed by forging and pressing T2 copper wool and provided with a connector is customized, and a water inlet pipe and a water outlet pipe with the proper length are cut out; s2, the side plates are welded to be compact through repeated heating, and a water inlet pipe and a water outlet pipe are welded; s3, the inner cavity partition plate is welded to be compact through repeated heating; s4, the top plate is pre-connected through local heating spot welding, and then repeated heating welding is conducted till the top plate is dense; s5, pre-connecting the end plate with the end part of the bottom plate, the end part of the side plate and the end part of the top plate through local heating spot welding, and then repeatedly heating and welding to be dense, so as to form the electric furnace conductive cross arm electrode chuck; and S6, performing a hydrostatic test on the electric furnace conductive cross arm electrode chuck. The use cost of raw materials and the purchase cost of equipment are effectively reduced, local rapid machining is achieved, the stock pressure of spare parts is effectively relieved, and the maintenance and machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electric equipment clamping, and particularly relates to an electrode chuck of an electric furnace conductive cross arm and a manufacturing method thereof. BACKGROUND

[0002] The electrode chuck of the electric arc furnace conductive cross arm is a rectangular frame structure made of copper-steel composite plate or aluminum-steel composite plate, the outer copper plate or aluminum plate bears the conductive function, the internal water cooling system is arranged to reduce the working temperature, in the use process, due to the high temperature and high dust state of the working environment, accompanied by the frequent vibration of the graphite electrode in the production process. In the prior art, one of which is to connect the conductive cross arm and the electrode chuck through the steel connecting plate, in the long-term use process, the water leakage problem is prone to occur due to the different deformation amounts of copper and steel under high temperature; the other is to use the whole copper as the blank for lathe processing, thereby causing the large consumption of the whole copper raw material and the high loss of the raw material. SUMMARY

[0003] In order to at least partially solve the technical problems existing in the prior art, the present application provides an electrode chuck of an electric furnace conductive cross arm and a manufacturing method thereof.

[0004] In the first aspect of the present application, a manufacturing method of an electrode chuck of an electric furnace conductive cross arm is provided, and the manufacturing method comprises the following steps:

[0005] S1: customizing a T2 copper blank forging and forming a bottom plate, a side plate, an end plate, an internal cavity partition plate and a top plate with joints, and cutting a Q235 seamless steel pipe with an appropriate length as a water inlet pipe and a water outlet pipe;

[0006] S2: symmetrically assembling the side plates on the left and right sides of the bottom plate, connecting and fixing the inside of the bottom plate with the left and right side plates through the positioning plate and the bolts, welding repeatedly to be dense, welding the water inlet pipe on the left side plate and the water outlet pipe on the right side plate;

[0007] S3: removing the positioning plate, then assembling the internal cavity partition plate parallel to the side plate in the middle of the bottom plate, and welding repeatedly to be dense;

[0008] S4: placing the top plate on the side plate and the internal cavity partition plate which have been welded, pre-connecting the top plate with the side plate and the internal cavity partition plate through local heating spot welding, and welding repeatedly to be dense;

[0009] S5: assembling the end plate with the end part of the bottom plate, the end part of the side plate and the end part of the top plate, pre-connecting the end plate with the end part of the bottom plate, the end part of the side plate and the end part of the top plate through local heating spot welding, and welding repeatedly to be dense to form the electrode chuck of the electric furnace conductive cross arm;

[0010] S6: water pressure test is conducted on the electrode holder of the electric furnace conductive cross arm.

[0011] Further, in the above-mentioned electric furnace conductive cross arm electrode holder manufacturing method, in the S1 step, the joint design bevel angle is 60-70°, and the root face is controlled to be 1-2 mm.

[0012] Further, in the above-mentioned electric furnace conductive cross arm electrode holder manufacturing method, in the S2-S5 steps, the repeated heating adopts a heating furnace, the temperature is controlled to be 600℃ each time, the first heating needs to be maintained for 3 hours, and the welding needs to be cooled to 350℃ before being reheated each time.

[0013] Further, in the above-mentioned electric furnace conductive cross arm electrode holder manufacturing method, in the S2-S5 steps, the YD-500GP electric welder is used during welding, the shielded metal arc welding is used, the argon gas is used as the protective gas, the welding current is controlled to be 160-180A, and the HS210 copper wire with a diameter of 1.2mm is used.

[0014] Further, in the above-mentioned electric furnace conductive cross arm electrode holder manufacturing method, in the S2 step, the water inlet pipe and the water outlet pipe are welded to the side plate by brazing process.

[0015] In the second aspect of the present application, an electric furnace conductive cross arm electrode holder is provided, which is produced by the above-mentioned electric furnace conductive cross arm electrode holder manufacturing method.

[0016] The electric furnace conductive cross arm electrode holder and the manufacturing method thereof have the following advantages and beneficial effects:

[0017] The present application adopts the customized T2 copper raw material forging and forming copper plate and assembles and welds it, effectively reduces the use cost of raw materials and the procurement cost of equipment, realizes local rapid processing, effectively reduces the spare parts inventory pressure, and improves the maintenance and processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only used to further understand the present application and form a part of the present application. For those skilled in the art, other drawings can also be obtained without creative labor based on these drawings. In the drawings:

[0019] Fig. 1 It is a top view of the electric furnace conductive cross arm electrode holder after the top plate is removed.

[0020] Fig. 2This is a left view of the electric furnace conductive cross arm electrode clamp after the end plate has been removed, according to the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1: Base plate; 2: Side plate; 3: End plate; 4: Inner cavity partition; 5: Top plate; 6: Inlet pipe; 7: Outlet pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0024] like Figs. 1-2 As shown, in a first aspect of the present invention, a method for manufacturing a conductive crossarm electrode chuck for an electric furnace is provided, the method comprising:

[0025] S1: Customized T2 copper blanks are forged and formed into a base plate 1, side plate 2, end plate 3, inner cavity partition 4 and top plate 5 with joints, and a suitable length of Q235 seamless steel pipe is cut as the water inlet pipe 6 and water outlet pipe 7. Therefore, it is not necessary to purchase a whole piece of forged copper for lathe processing, which not only effectively reduces the procurement cost, but also effectively reduces the loss of raw materials.

[0026] S2: The side plates 2 are symmetrically assembled on the left and right sides of the base plate 1. The positioning plates are connected and fixed to the left and right side plates 2 with bolts. The plates are repeatedly heated and welded until they are dense. The water inlet pipe 6 is welded on the left side plate 2 and the water outlet pipe 7 is welded on the right side plate 2.

[0027] S3: Remove the positioning plate, then assemble the inner cavity partition 4 and the side plate 2 in parallel in the middle of the bottom plate 1, and weld them together by repeated heating until they are dense;

[0028] S4: Place the top plate 5 on the welded side plate 2 and inner cavity partition 4. First, use local heating spot welding to pre-connect the top plate 5 with the side plate 2 and inner cavity partition 4. Then, use repeated heating welding to make it dense. So that if the top plate 5 leaks during use, the top plate 5 can be replaced by cutting the weld, which effectively reduces the cost of use and improves maintenance efficiency.

[0029] S5: Assemble the end plate 3 with the end of the bottom plate 1, the end of the side plate 2 and the end of the top plate 5. First, use local heating spot welding to pre-connect the end plate 3 with the end of the bottom plate 1, the end of the side plate 2 and the end of the top plate 5. Then, use repeated heating welding to make it dense, forming the electric furnace conductive cross arm electrode clamp.

[0030] S6: Water pressure test is performed on the electrode holder of the electric furnace conductive cross arm.

[0031] Further, in the above-mentioned electrode holder manufacturing method of the electric furnace conductive cross arm, in the step S1, the joint design bevel angle is 60-70°, and the root face is controlled to be 1-2 mm, so that the cutting replacement of each plate in the case of leakage is effectively ensured.

[0032] Further, in the above-mentioned electrode holder manufacturing method of the electric furnace conductive cross arm, in the steps S2-S5, the repeated heating adopts a heating furnace, the temperature of each heating is controlled to be 600℃, the first heating needs to be maintained for 3h, and after each heating and welding, the temperature needs to be cooled to 350℃ before re-heating, so that the welding quality is effectively improved, the leakage at the weld is avoided in the case of deformation under long-term high temperature, and the overall mechanical strength is improved.

[0033] Further, in the above-mentioned electrode holder manufacturing method of the electric furnace conductive cross arm, in the steps S2-S5, the YD-500GP electric welder is used during welding, the shielded metal arc welding is used, the argon gas is used as the protective gas, the welding current is controlled to be 160-180A, and the HS210 copper wire with a diameter of 1.2mm is used.

[0034] Further, in the above-mentioned electrode holder manufacturing method of the electric furnace conductive cross arm, in the step S2, the water inlet pipe 6 and the water outlet pipe 7 are brazed with the side plate 2.

[0035] Specifically, during production, since the bottom plate 1, the side plate 2, the end plate 3, the inner cavity partition plate 4 and the top plate 5 are directly formed by forging and molding of the customized T2 copper raw material with joints, the lathe processing of the bottom plate 1, the side plate 2, the end plate 3, the inner cavity partition plate 4 and the top plate 5 is not needed, the factory can independently weld the bottom plate 1, the side plate 2, the end plate 3, the inner cavity partition plate 4 and the top plate 5, and a spare finished product of the electrode holder of the electric furnace conductive cross arm is not needed, when the electrode holder of the electric furnace conductive cross arm appears leakage during use (generally, the top plate 5 appears leakage), the cutting along the weld at the leakage position is performed, and the bottom plate 1, the side plate 2, the end plate 3, the inner cavity partition plate 4 or the top plate 5 is replaced by welding.

[0036] In the second aspect of the present application, an electrode holder of an electric furnace conductive cross arm is provided, which is produced by the above-mentioned electrode holder manufacturing method of the electric furnace conductive cross arm.

[0037] In summary, compared with the prior art, the electrode holder of the electric furnace conductive cross arm and the manufacturing method thereof have the following advantages and beneficial effects:

[0038] The application adopts the copper plate formed by forging and pressing of customized T2 copper hair material and assembles and welds the same, effectively reduces the use cost of raw materials and the purchase cost of equipment, realizes local rapid processing, effectively reduces the spare parts inventory pressure, and improves the maintenance and processing efficiency.

[0039] It should be noted that, in this article, unless otherwise specified and limited, the term "connection" or its synonyms should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, and those skilled in the art can understand the specific meaning of the above-mentioned terms in the application according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. At the same time, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. In addition, "front", "back", "left", "right", "up", "down" in this article are referred to the placement state shown in the drawings.

[0040] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of manufacturing an electrode holder for an electric furnace current-carrying cross arm, characterized by, The electric furnace conductive cross arm electrode chuck manufacturing method comprises: S1: customizing a T2 copper blank forging forming bottom plate, side plate, end plate, inner cavity partition plate and top plate with joints, and cutting a proper length of Q235 seamless steel pipe as the water inlet pipe and the water outlet pipe; S2: symmetrically assembling the side plates on the left and right sides of the bottom plate, connecting and fixing the inside of the positioning plate with the left and right side plates through bolts, welding repeatedly to compact, and welding the water inlet pipe on the left side plate and the water outlet pipe on the right side plate; S3: removing the positioning plate, then assembling the inner cavity partition plate parallel to the side plate in the middle of the bottom plate, and welding repeatedly to compact; S4: placing the top plate on the welded side plate and inner cavity partition plate, pre-connecting the top plate with the side plate and the inner cavity partition plate through local heating spot welding, and welding repeatedly to compact; S5: assembling the end plate with the end of the bottom plate, the end of the side plate and the end of the top plate, pre-connecting the end plate with the end of the bottom plate, the end of the side plate and the end of the top plate through local heating spot welding, and welding repeatedly to compact to form the electric furnace conductive cross arm electrode chuck; S6: performing a water pressure test on the electric furnace conductive cross arm electrode chuck.

2. The method of claim 1, wherein the method further comprises: In the S1 step, the joint design bevel angle is 60-70°, and the root face is controlled to be 1-2mm.

3. The method of claim 1, wherein the method further comprises: In the S2-S5 steps, the repeated heating adopts a heating furnace, the heating temperature is controlled to be 600℃ each time, the first heating needs to be maintained for 3h, and the temperature needs to be cooled to 350℃ after each heating and welding before being reheated.

4. The method of claim 1, wherein the method further comprises: In the S2-S5 steps, YD-500GP electric welder is used during welding, fusion argon arc welding is used, argon gas is used as the protective gas, the welding current is controlled to be 160-180A, and HS210 copper wire with a diameter of 1.2mm is used as the welding wire.

5. The method of claim 1, wherein the method further comprises: In the S2 step, the water inlet pipe and the water outlet pipe are welded with the side plate by using the copper welding process.

6. An electrode holder for an electrically conductive cross arm electrode of an electric furnace, characterized in that The electric furnace conductive cross arm electrode chuck is produced by using the electric furnace conductive cross arm electrode chuck manufacturing method in any one of claims 1 to 5.

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