Preparation device and preparation process of hastelloy fiber

Abstract

The invention discloses a preparation device for hastelloy fibers. The preparation device comprises an isolating layer electroplating mechanism, a sleeve mechanism, a drawing mechanism, a heat treatment mechanism and a deplating mechanism, the isolating layer electroplating mechanism is used for plating nickel on the outer layer of the hastelloy wire; the sleeving mechanism is used for bundling the Hastelloy alloy wires and then loading the bundled Hastelloy alloy wires into an iron protection tube; the drawing mechanism is used for drawing the first composite wire; the heat treatment mechanism is used for heating the first composite wire; and the deplating mechanism is used for removing the iron protection tube and the isolation layer on the first composite line. The invention provides a preparation device of hastelloy fibers. Nickel isolation layers are electroplated on the surfaces of Hastelloy alloy wires through the isolation layer electroplating mechanism, the multiple Hastelloy alloy wires subjected to nickel plating are arranged into bundles through the sleeve mechanism and then loaded into an iron protection pipe, the Hastelloy alloy wire bundles are subjected to heat treatment and drawing through the heat treatment mechanism and the drawing mechanism, and the drawn iron protection pipe and the isolation layers are removed through the deplating mechanism. The hastelloy alloy fiber is prepared.

Description

Technical Field

[0001] The invention relates to the technical field of metal fiber processing, and in particular to a preparation device and a preparation process of Hastelloy alloy fiber. Background Art

[0002] Hastelloy alloy fiber has excellent corrosion resistance. Filter felt made of Hastelloy alloy fiber can be used in harsh corrosive environments, such as chemical, petroleum, flue gas desulfurization, pulp and paper, environmental protection and other industrial fields, and has a wide range of applications.

[0003] At present, the mass production of Hastelloy alloy fiber is difficult, and batches of Hastelloy alloy fiber can only rely on imports. Therefore, developing an effective Hastelloy alloy mass production process is the key to promoting the development of the domestic filtration field under harsh corrosion-resistant environments. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a preparation device and preparation process of Hastelloy alloy fiber, and the specific technical scheme is as follows:

[0005] A preparation device for Hastelloy alloy fiber, used for preparing Hastelloy alloy wire into Hastelloy alloy fiber, the preparation device comprising:

[0006] An isolation layer electroplating mechanism, used for plating nickel on the outer layer of the Hastelloy wire to form an isolation layer;

[0007] A casing mechanism, arranged behind the isolation layer electroplating mechanism, is used to bundle a plurality of Hastelloy alloy wires and put them into an iron protective tube to form a first composite wire;

[0008] A drawing mechanism, disposed behind the casing mechanism, for drawing the first composite wire;

[0009] a heat treatment mechanism, connected to the drawing mechanism, and used to heat the first composite wire;

[0010] The stripping mechanism is arranged after the drawing mechanism and is used to remove the iron protective tube and the isolation layer on the first composite wire.

[0011] Preferably, the sleeve mechanism comprises:

[0012] A bundling element, used for bundling a plurality of the Hastelloy alloy wires into a bundle to form a second composite wire;

[0013] A casing assembly is used to insert the second composite wire into the iron protective tube to form the first composite wire.

[0014] Preferably, the sleeve assembly comprises:

[0015] Bracket;

[0016] A clamping member, provided on the bracket, used for clamping the iron protective tube to make the iron protective tube vertical;

[0017] A driving member, disposed on the bracket;

[0018] A traction rope has one end connected to the output end of the driving member and the other end passing through the inside of the iron protection tube.

[0019] Preferably,

[0020] The clustering element comprises a locking ring, which is used to trap a plurality of Hastelloy alloy wires and form a fixing portion sleeved on the Hastelloy alloy wires and a pulling portion away from the Hastelloy alloy wires after being tightened;

[0021] A hook is provided at the end of the traction rope, and the hook is used to hook the traction part.

[0022] Preferably, the stripping mechanism comprises:

[0023] an electrolytic cell, wherein a receiving groove for receiving the first composite wire is formed in the electrolytic cell, so that the first composite wire can move in the receiving groove along a first direction;

[0024] The alternating positive and negative electrolytic assembly is arranged in the containing tank, and comprises a plurality of cathode plate groups and anode plate groups arranged alternately along the first direction.

[0025] Preferably,

[0026] The cathode plate group includes two cathode plates arranged at two opposite inner sides of the containing groove;

[0027] The anode plate group includes two anode plates arranged at two opposite inner sides of the containing tank.

[0028] The present invention also provides a preparation process of Hastelloy alloy fiber, which adopts the preparation device as described in any one of the above, and the preparation process specifically comprises the following steps:

[0029] Step 1: nickel is plated on the surface of the Hastelloy alloy wire to obtain the Hastelloy alloy wire with an isolation layer on the surface;

[0030] Step 2: Bundle multiple Hastelloy alloy wires with an isolation layer on the surface obtained in step 1 and place them into an iron protective tube to form a first composite wire;

[0031] Step 3: Drawing the first composite wire once to obtain a first composite wire with an iron protective tube tightly attached to the Hastelloy wire;

[0032] Step 4: heat-treating and secondary drawing the iron protective tube obtained in step 3 close to the first composite wire of the Hastelloy alloy wire, wherein the total diameter reduction rate of the secondary drawing is between 50% and 70%;

[0033] Step 5: electrochemically separate the first composite wire after the second drawing in step 4, and obtain the Hastelloy alloy fiber wire after removing the iron protective tube and the isolation layer.

[0034] Preferably, the step of plating nickel on the surface of the Hastelloy wire specifically comprises the following steps:

[0035] Step 1: Cleaning the Hastelloy wire using a sulfuric acid solution having a concentration of 1 mol / L to 2.5 mol / L;

[0036] Step 2: using a mixed solution of nickel chloride and nickel sulfate as an electroplating solution to plate a nickel layer on the Hastelloy wire cleaned in step 1, wherein the concentration of chloride ions in the mixed solution of nickel chloride and nickel sulfate is 5 g / L to 20 g / L, and the concentration of nickel ions is 40 g / L to 100 g / L;

[0037] Step 3: Clean and dry the Hastelloy wire after nickel plating in step 2.

[0038] Preferably, the removal of the iron protective tube and the isolation layer specifically comprises the following steps:

[0039] Using a sulfuric acid solution with a concentration of 1 mol / L to 3 mol / L as an electrolyte, electrolytically separating the iron protective tube;

[0040] The separation layer is electrolytically separated using a nitric acid solution with a concentration of 1 mol / L to 2 mol / L as an electrolyte.

[0041] Preferably,

[0042] The diameter of the Hastelloy wire is 0.1 mm to 1.0 mm;

[0043] The thickness of the isolation layer is 20 μm to 40 μm;

[0044] The number of Hastelloy alloy wires in the first composite wire is 100 to 6000;

[0045] The ratio of the Hastelloy alloy wire in the first composite wire to the cross-section of the iron protective tube is 30% to 60%;

[0046] The length of the Hastelloy wire with the isolation layer on the surface is greater than the length of the iron protection tube;

[0047] The outer diameter of the iron protective tube is 14 mm to 30 mm, and the wall thickness is 1 mm to 2 mm;

[0048] The heat treatment temperature in step 4 is 1000° C. to 1200° C., and the heat treatment time is 1 min to 15 min;

[0049] The secondary drawing is a multi-pass drawing, wherein the diameter reduction rate of a single-pass drawing is between 10% and 18%.

[0050] The present invention provides a preparation device for Hastelloy alloy fiber, which uses an isolation layer electroplating mechanism to electroplate a nickel isolation layer on the surface of the Hastelloy alloy wire, a sleeve mechanism to arrange multiple nickel-plated Hastelloy alloy wires into bundles and then put them into an iron protective tube, a heat treatment mechanism and a drawing mechanism to heat treat and draw the Hastelloy alloy wire bundles, and a deplating mechanism to remove the iron protective tube and the isolation layer after drawing, so as to prepare the Hastelloy alloy fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 A structural block diagram of various mechanisms of a device for preparing Hastelloy alloy fiber provided in an embodiment of the present invention;

[0053] Figure 2 A front view of a sleeve mechanism provided in an embodiment of the present invention;

[0054] Figure 3 A schematic diagram of the three-dimensional structure of a locking ring provided in an embodiment of the present invention;

[0055] Figure 4 A structural diagram of a stripping mechanism provided in an embodiment of the present invention.

[0056] Reference numerals

[0057] 100-Hastelloy wire; 200-first composite wire; 300-iron protection tube;

[0058] 1-Isolation layer electroplating mechanism;

[0059] 2-sleeve mechanism; 21-clustering element; 211-locking ring; 2111-fixing part; 2112-traction part; 22-sleeve assembly; 221-bracket; 222-clamping part; 223-driving part; 224-traction rope; 2241-hook;

[0060] 3-Pulling mechanism;

[0061] 4-Heat treatment mechanism;

[0062] 5-stripping mechanism; 51-electrolytic cell; 511-holding cell; 52-yin-yang alternating electrolytic assembly; 521-cathode plate; 522-anode plate. DETAILED DESCRIPTION

[0063] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0064] It should be noted that similar reference numerals denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in the subsequent drawings.

[0065] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0066] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0067] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] See also Figures 1 to 4 This embodiment provides a Hastelloy alloy fiber preparation device for making a Hastelloy alloy wire 100 into a Hastelloy alloy fiber. The preparation device includes an isolation layer electroplating mechanism 1, a sleeve mechanism 2, a drawing mechanism 3, a heat treatment mechanism 4 and a stripping mechanism 5.

[0069] The isolation layer electroplating mechanism 1 is used to plate nickel on the outer layer of the Hastelloy wire 100 to form an isolation layer.

[0070] The casing mechanism 2 is disposed behind the isolation layer electroplating mechanism 1 and is used to bundle a plurality of Hastelloy alloy wires 100 and insert them into an iron protective tube 300 to form a first composite wire 200 .

[0071] The drawing mechanism 3 is disposed behind the casing mechanism 2 and is used for drawing the first composite wire 200 .

[0072] The heat treatment mechanism 4 is connected to the drawing mechanism 3 and is used to heat the first composite wire 200 .

[0073] The stripping mechanism 5 is disposed after the drawing mechanism 3 and is used to remove the iron protection tube 300 and the isolation layer on the first composite wire 200 .

[0074] Among them, the isolation layer electroplating mechanism 1 can be a conventional electroplating equipment, and nickel is plated on the outer layer of the Hastelloy wire 100 by electrolysis, and the isolation layer is the electroplated nickel layer; the drawing mechanism 3 is a conventional bundle drawing equipment; the heat treatment mechanism 4 can heat the first composite wire 200, and the drawing mechanism 3 draws the first composite wire 200 at the same time; the stripping mechanism 5 can be a conventional electrolytic stripping equipment, which can remove the iron protective tube 300 and the isolation layer of the first composite wire 200 in turn.

[0075] During operation, the isolation layer electroplating mechanism 1 first plates nickel on the outer surface of the Hastelloy wire 100 as an isolation layer, and the sleeve mechanism 2 then arranges multiple Hastelloy wires 100 with the isolation layer blocked into a bundle and loads them into the iron protective tube 300 to form a first composite wire 200. The drawing mechanism 3 first performs preliminary drawing on the first composite wire 200 to eliminate the filling gaps in the iron protective tube 300 so that the iron protective tube 300 is close to the Hastelloy wire bundle, and then the first composite wire 200 after the filling gaps are eliminated is heated by the heat treatment mechanism 4. After heating to a sufficient temperature, the drawing mechanism 3 again reduces the diameter of the first composite wire 200. After the first composite wire 200 meets the target diameter, the drawing is stopped. After the drawn first composite wire 200, the iron protective tube 300 and the isolation layer are removed by the stripping mechanism 5 to obtain the Hastelloy fiber. Advantageously, inserting the Hastelloy wire bundle into the iron protection tube 300 can enhance the metal ductility during drawing, avoid the Hastelloy wire 100 from breaking during drawing, and eliminating the filling gap of the iron protection tube 300 can avoid the Hastelloy wire 100 from rubbing against each other and causing radial deviation during drawing.

[0076] The present embodiment provides a preparation device for Hastelloy alloy fiber, which uses an isolation layer electroplating mechanism 1 to electroplate a nickel isolation layer on the surface of a Hastelloy alloy wire 100, a sleeve mechanism 2 to bundle a plurality of nickel-plated Hastelloy alloy wires 100 and then load them into an iron protective tube 300, a heat treatment mechanism 4 and a drawing mechanism 3 to heat treat and draw the Hastelloy alloy wire bundle, and a stripping mechanism 5 to remove the iron protective tube 300 and the isolation layer after drawing, so as to obtain a Hastelloy alloy fiber.

[0077] For further information, see Figure 2 The sleeve mechanism 2 includes a bundling element 21 and a sleeve assembly 22 .

[0078] The bundling element 21 is used to bundle the plurality of Hastelloy wires 100 into a bundle to form a second composite wire.

[0079] The casing assembly 22 is used to insert the second composite wire into the iron protective tube 300 to form the first composite wire 200 .

[0080] The Hastelloy wires 100 can be manually arranged into bundles, and then the bundled Hastelloy wires 100 are bundled by the bundling element 21. Since the diameters of the Hastelloy wires 100 and the iron protective tube 300 are both small, the bundled Hastelloy wire bundles can be passed through the iron protective tube 300 through the sleeve assembly 22 to form the first composite wire 200.

[0081] For further information, please see Figure 2 The sleeve assembly 22 includes a bracket 221, a clamping member 222, a driving member 223 and a traction rope 224.

[0082] The bracket 221 plays a role of fixing and supporting.

[0083] The clamping member 222 is disposed on the bracket 221 and is used to clamp the iron protection pipe 300 to make the iron protection pipe 300 vertical.

[0084] The driving member 223 is disposed on the bracket 221 .

[0085] One end of the traction rope 224 is connected to the output end of the driving member 223 , and the other end thereof passes through the inside of the iron protection tube 300 .

[0086] Among them, the iron protective tube 300 can be placed vertically or tilted, and a counterweight block can be set at the bottom of the traction rope 224 to facilitate the traction rope 224 to slide down from the inside of the iron protective tube 300. When the traction rope 224 slides down to extend from the bottom end of the iron protective tube 300, the end of the Hastelloy alloy wire 100 arranged into a bundle and the end of the traction rope 224 can be fixed, and the driving member 223 rotates to accommodate the traction rope 224, so that the traction rope 224 pulls the Hastelloy alloy wire 100 through the inside of the iron protective tube 300 to form a first composite wire 200.

[0087] For further information, see Figure 3 , in the examples provided in this implementation:

[0088] The bundling element 21 comprises a locking ring 211 , which is used to trap a plurality of Hastelloy wires 100 and form a fixing portion 2111 fitted on the Hastelloy wires 100 and a pulling portion 2112 away from the Hastelloy wires 100 after being tightened.

[0089] A hook 2241 is provided at the end of the traction rope 224 , and the hook 2241 is used to hook the traction part 2112 .

[0090] Among them, the locking ring 211 can be a thin iron ring. After the locking ring 211 is looped around the end of the Hastelloy alloy wire bundle, the locking ring 211 can be tightened by using tools such as pliers. After tightening, the locking ring 211 forms a small ring away from the Hastelloy alloy wire bundle, and the small ring is the traction part 2112. After the hook 2241 hooks the traction part 2112, pulling the traction rope 224 can pull the Hastelloy alloy wire bundle into the iron protective tube 300.

[0091] For further information, see Figure 4 The stripping mechanism 5 includes an electrolytic cell 51 and a positive-negative alternating electrolytic component 52 .

[0092] An accommodating groove 511 for accommodating the first composite wire 200 is formed in the electrolytic tank 51 , so that the first composite wire 200 can move along a first direction in the accommodating groove 511 .

[0093] The alternating positive and negative electrolytic assembly 52 is disposed in the containing tank 511 and includes a plurality of cathode plate groups and anode plate groups arranged alternately along a first direction.

[0094] Among them, the cathode plate group is connected to the negative pole of the power supply, the anode plate group is connected to the positive pole of the power supply, the first direction is the extension direction of the first composite wire 200, the first composite wire 200 is placed in the accommodating groove 511 and can move along the extension direction, and the cathode plate group and the anode plate group are arranged alternately along the extension direction of the first composite wire 200.

[0095] Furthermore, the cathode plate assembly includes two cathode plates 521 disposed at two opposite inner sides of the receiving groove 511 , and the anode plate assembly includes two anode plates 522 disposed at two opposite inner sides of the receiving groove 511 .

[0096] Among them, the current can flow to the first composite wire 200 through the anode plate 522, and then flow into the cathode plate 521 after flowing on the first composite wire 200. In this process, the part where the current flows into the first composite wire 200 is equivalent to the cathode, and the part where the current flows out of the first composite wire 200 is equivalent to the anode. The anode part of the first composite wire 200 undergoes an oxidation reaction, so that the iron protective layer 300 and the isolation layer form ion precipitation, thereby removing the iron protective layer 300 and the isolation layer, and the hydrogen ions of the electrolyte in the receiving tank 511 generate hydrogen in the cathode part of the first composite wire 200, disrupting the generated metal ions and avoiding the accumulation of metal ions on the first composite wire 200.

[0097] This embodiment also provides a preparation process of Hastelloy alloy fiber, using any preparation device as described above, and the preparation process specifically includes the following steps:

[0098] Step 1: Nickel is plated on the surface of the Hastelloy wire 100 to obtain a Hastelloy wire with an isolation layer on the surface.

[0099] Step 2: Bundle multiple Hastelloy alloy wires with an isolation layer on the surface obtained in step 1 and place them into an iron protective tube 300 to form a first composite wire 200 .

[0100] Step 3: Drawing the first composite wire 200 once to obtain the first composite wire 200 with the iron protection tube 300 closely attached to the Hastelloy wire.

[0101] Step 4: The iron protection tube 300 obtained in step 3 is placed close to the first composite wire 200 of Hastelloy wire for heat treatment and secondary drawing, wherein the total diameter reduction rate of the secondary drawing is between 50% and 70%.

[0102] Step 5: electrochemically separate the first composite wire 200 after the second drawing in step 4, and obtain the Hastelloy alloy fiber wire after removing the iron protection tube 300 and the isolation layer.

[0103] Among them, step 1 is to electroplate nickel on the surface of the Hastelloy wire 100 through the isolation layer electroplating mechanism 1; step 2 is to bundle multiple Hastelloy wires with an isolation layer on the surface into an iron protective tube 300 through the casing mechanism 2; step 3 is to draw the first composite wire 200 once through the drawing mechanism 3; step 4 is to heat treat the first composite wire 200 through the heat treatment mechanism 4, and to draw the first composite wire 200 twice through the drawing mechanism 3; step 5 is to electrochemically separate the first composite wire 200 through the stripping mechanism 5.

[0104] Specifically, the first drawing is a preliminary drawing, which is a cold working process, and its purpose is to eliminate the filling gaps in the iron protective tube 300; the second drawing is a diameter reducing drawing, and the mechanical properties of Hastelloy can be enhanced by heat treatment drawing.

[0105] Furthermore, plating nickel on the surface of the Hastelloy wire 100 specifically includes the following steps:

[0106] Step 1: Clean the Hastelloy wire 100 using a sulfuric acid solution having a concentration of 1 mol / L to 2.5 mol / L.

[0107] Step 2: Use a mixed solution of nickel chloride and nickel sulfate as an electroplating solution to plate a nickel layer on the Hastelloy wire 100 cleaned in step 1, wherein the concentration of chloride ions in the mixed solution of nickel chloride and nickel sulfate is 5g / L to 20g / L, and the concentration of nickel ions is 40g / L to 100g / L.

[0108] Step 3: Clean and dry the Hastelloy wire 100 after nickel plating in step 2.

[0109] Among them, using sulfuric acid solution to clean the Hastelloy alloy wire 100 in step 1 can remove impurities such as oil stains on the surface of the Hastelloy alloy wire 100; the Hastelloy alloy wire 100 that has been cleaned and dried in step 3 can be placed in a dehumidification room for 48 hours to 72 hours to remove residual moisture on the surface of the Hastelloy alloy wire 100 and ensure the dryness of the surface.

[0110] Furthermore, removing the iron protection tube 300 and the isolation layer specifically includes the following steps:

[0111] The iron protection tube 300 is electrolytically separated using a sulfuric acid solution having a concentration of 1 mol / L to 3 mol / L as an electrolyte.

[0112] A nitric acid solution with a concentration of 1 mol / L to 2 mol / L is used as an electrolyte to electrolytically separate the separation layer.

[0113] Among them, the removal of the iron protection tube 300 and the isolation layer can be carried out by the stripping mechanism 5. A sulfuric acid solution and a nitric acid solution can be placed in the two electrolytic cells 51 respectively. During the heat treatment, the nickel isolation layer will diffuse thermally and combine with the nickel in the Hastelloy alloy wire matrix to form a diffusion layer. Therefore, after stripping the isolation layer, it can be left for a period of time to continue to remove the diffusion layer on the surface of the Hastelloy alloy fiber. In the example provided in this embodiment, the removal rate of the diffusion layer on the surface of the Hastelloy alloy fiber is 5% to 10%.

[0114] Further, in the examples provided in this embodiment:

[0115] The diameter of the Hastelloy alloy wire 100 is 0.1 mm to 1.0 mm, and Hastelloy alloy wires with grades C59 and C276 are preferably used.

[0116] When nickel is electroplated on the Hastelloy wire 100, the thickness of the isolation layer is 20 μm to 40 μm.

[0117] The number of the Hastelloy alloy wires 100 in the first composite wire 200 is 100 to 6000. Specifically, when more than 100 Hastelloy alloy wires are arranged into a bundle, the number is controlled to be 100 to 6000.

[0118] The Hastelloy wire 100 in the first composite wire 200 occupies 30% to 60% of the cross section of the iron protection tube 300. Specifically, when the Hastelloy wire bundle is loaded into the iron protection tube 300, the Hastelloy wire bundle occupies 30% to 60% of the cross section of the iron protection tube 300.

[0119] The length of the Hastelloy wire with the isolation layer on the surface is greater than the length of the iron protection tube 300 , so as to facilitate drawing after the first composite wire 200 is formed.

[0120] The outer diameter of the iron protection tube 300 is 14 mm to 30 mm, and the tube wall thickness is 1 mm to 2 mm.

[0121] The heat treatment temperature in step 4 is 1000° C. to 1200° C., and the heat treatment time is 1 min to 15 min.

[0122] The secondary drawing is a multi-pass drawing, wherein the diameter reduction rate of a single-pass drawing is between 10% and 18%.

[0123] In the examples provided in this embodiment, the diameter reduction of the manufactured Hastelloy fiber product is 70% to 90%.

[0124] Specific examples are provided below. The provided examples may enable those skilled in the art to more fully understand the present invention, but do not limit the present invention in any way.

[0125] Example

[0126] A Hastelloy alloy fiber is selected from a 0.2 mm Hastelloy alloy wire as a raw material. The composition of the Hastelloy alloy wire is (expressed in wt.%): C: 0.007%, P: 0.015%, S: 0.017%, Mn: 0.46%, Ni: 79.5%, Mo: 4.0%, Cu: 0.019%, and the balance is nickel. The Hastelloy alloy fiber is obtained by the following preparation process:

[0127] Use 1 mol / L sulfuric acid solution for cleaning; use a mixed solution of nickel chloride and nickel sulfate with a chloride ion concentration of 10 g / L and a nickel ion concentration of 60 g / L to electroplate a nickel layer; clean and dry, and place in a dehumidification room for 48 hours; 1000 Hastelloy alloy wires are bundled and sleeved into an iron pipe with an outer diameter of 15 mm and a wall thickness of 1 mm; after preliminary drawing to eliminate the filling gaps, heat treatment is performed at 1000°C for 3 minutes, and then multiple drawing passes are performed; the surface iron layer is electrolytically separated in a 1.5 mol / L sulfuric acid solution; the nickel isolation layer is electrolytically separated in a 1.5 mol / L nitric acid solution.

[0128] Working principle:

[0129] See also Figure 1 The cleaning mechanism first cleans the Hastelloy wire 100; after cleaning, nickel is plated on the Hastelloy wire 100 through the isolation layer electroplating mechanism; the nickel-plated Hastelloy wire 100 is cleaned and dried by the cleaning and drying mechanism and then placed in a dehumidification room for dehumidification to remove residual moisture on the surface; more than 100 dried Hastelloy wires are arranged into bundles and loaded into the iron protective tube 300 through the sleeve mechanism 2 to form a first composite wire 200; the first composite wire 200 is drawn once to eliminate the filling gap in the iron protective tube 300, and then subjected to heat treatment and secondary drawing at the same time, so that the first composite wire 200 reaches the target diameter; the outer iron protective tube 300 and the isolation layer of the first composite wire 200 after drawing are removed in turn by the stripping mechanism 5; and finally the Hastelloy alloy fiber is obtained.

[0130] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0131] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements, modifications or changes can be made, and the above technical features can be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A preparation device for Hastelloy alloy fiber, used for preparing Hastelloy alloy wire (100) into Hastelloy alloy fiber, characterized in that: The preparation device comprises: An isolation layer electroplating mechanism (1) is used for plating nickel on the outer layer of the Hastelloy wire (100) to form an isolation layer; A casing mechanism (2) is arranged behind the isolation layer electroplating mechanism (1) and is used to bundle a plurality of Hastelloy alloy wires (100) and then load them into an iron protective tube (300) to form a first composite wire (200); A drawing mechanism (3), arranged behind the sleeve mechanism (2), and used for drawing the first composite wire (200); a heat treatment mechanism (4), connected to the drawing mechanism (3), and used for heating the first composite wire (200); The stripping mechanism (5) is arranged behind the drawing mechanism (3) and is used to remove the iron protective tube (300) and the isolation layer on the first composite wire (200).

2. The preparation device of Hastelloy alloy fiber according to claim 1, characterized in that: The sleeve mechanism (2) comprises: A bundling element (21) for bundling a plurality of the Hastelloy alloy wires (100) into a bundle to form a second composite wire; A casing assembly (22) is used to insert the second composite wire into the iron protective tube (300) to form the first composite wire (200).

3. The preparation device of Hastelloy alloy fiber according to claim 2, characterized in that: The sleeve assembly (22) comprises: Bracket (221); A clamping member (222) is provided on the bracket (221) and is used to clamp the iron protective tube (300) so that the iron protective tube (300) is vertical; A driving member (223) is disposed on the support (221); A traction rope (224) has one end connected to the output end of the driving member (223) and the other end passing through the inside of the iron protection tube (300).

4. The preparation device of Hastelloy alloy fiber according to claim 3, characterized in that: The bundling element (21) comprises a locking ring (211), the locking ring (211) being used to trap a plurality of Hastelloy alloy wires (100) and, after being tightened, to form a fixing portion (2111) sleeved on the Hastelloy alloy wires (100) and a pulling portion (2112) away from the Hastelloy alloy wires (100); The end of the traction rope (224) is provided with a hook (2241), and the hook (2241) is used to hook the traction part (2112).

5. The preparation device of Hastelloy alloy fiber according to claim 1, characterized in that: The stripping mechanism (5) comprises: an electrolytic cell (51), wherein a receiving groove (511) for receiving the first composite wire (200) is formed in the electrolytic cell (51), so that the first composite wire (200) can move in the receiving groove (511) along a first direction; The alternating positive and negative electrolytic assembly (52) is disposed in the containing tank (511), and comprises a plurality of cathode plate groups and anode plate groups arranged alternately along the first direction.

6. The preparation device of Hastelloy alloy fiber according to claim 5, characterized in that: The cathode plate group comprises two cathode plates (521) arranged on two opposite inner sides of the containing groove (511); The anode plate group comprises two anode plates (522) arranged on two opposite inner sides of the containing groove (511).

7. A process for preparing Hastelloy alloy fiber, characterized in that: The preparation device according to any one of claims 1 to 6 is used, and the preparation process specifically comprises the following steps: S1: nickel is plated on the surface of the Hastelloy alloy wire (100) to obtain the Hastelloy alloy wire having an isolation layer on the surface; S2: Bundle a plurality of Hastelloy alloy wires having an isolation layer on the surface obtained in step S1 and place them into an iron protective tube (300) to form a first composite wire (200); S3: Drawing the first composite wire (200) once to obtain a first composite wire (200) in which the iron protection tube (300) is closely attached to the Hastelloy wire; S4: placing the iron protective tube (300) obtained in step S3 close to the first composite wire (200) of the Hastelloy alloy wire for heat treatment and secondary drawing, wherein the total diameter reduction rate of the secondary drawing is between 50% and 70%; S5: electrochemically separating the first composite wire (200) after the second drawing in step S4, removing the iron protection tube (300) and the isolation layer to obtain Hastelloy alloy fiber wire.

8. The method according to claim 7, characterized in that The step of plating nickel on the surface of the Hastelloy wire (100) specifically comprises the following steps: SS1: Cleaning the Hastelloy alloy wire (100) using a sulfuric acid solution having a concentration of 1 mol / L to 2.5 mol / L; SS2: using a mixed solution of nickel chloride and nickel sulfate as an electroplating solution to plate a nickel layer on the Hastelloy wire (100) cleaned in step SS1, wherein the concentration of chloride ions in the mixed solution of nickel chloride and nickel sulfate is 5 g / L to 20 g / L, and the concentration of nickel ions is 40 g / L to 100 g / L; SS3: Clean and dry the Hastelloy wire (100) after nickel plating in step SS2.

9. The method according to claim 7, characterized in that: The removal of the iron protective tube (300) and the isolation layer specifically comprises the following steps: Using a sulfuric acid solution with a concentration of 1 mol / L to 3 mol / L as an electrolyte to electrolyze and separate the iron protective tube (300); The separation layer is electrolytically separated using a nitric acid solution with a concentration of 1 mol / L to 2 mol / L as an electrolyte.

10. The method according to any one of claims 7 to 9, characterized in that: The diameter of the Hastelloy alloy wire (100) is 0.1 mm to 1.0 mm; The thickness of the isolation layer is 20 μm to 40 μm; The number of the Hastelloy alloy wires (100) in the first composite wire (200) is 100 to 6000; The proportion of the Hastelloy wire (100) in the first composite wire (200) to the cross-section of the iron protective tube (300) is 30% to 60%; The length of the Hastelloy alloy wire having an isolation layer on the surface is greater than the length of the iron protective tube (300); The outer diameter of the iron protective tube (300) is 14 mm to 30 mm, and the tube wall thickness is 1 mm to 2 mm; The heat treatment temperature in step S4 is 1000° C. to 1200° C., and the heat treatment time is 1 min to 15 min; The secondary drawing is a multi-pass drawing, wherein the diameter reduction rate of a single-pass drawing is between 10% and 18%.

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