Auxiliary deoxidizing agent adding device
By designing a deoxidizer addition auxiliary device and using a feeding belt and a pulling element to achieve automatic and uniform delivery of microalloy and deoxidizer, the problem of uneven manual addition during electroslag remelting of electrode billets is solved, and the quality of the remelted metal is improved.
Patent Information
- Application Number
- CN202422076514.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-08-26
AI Technical Summary
During the electroslag remelting process of electrode blanks, the artificial addition of microalloys and deoxidizers is uneven, affecting the metal quality.
A deoxidizer addition auxiliary device is designed, including a support rod and a traction mechanism. The feed belt and traction element are used to achieve automatic and uniform addition of microalloy powder and deoxidizer powder. The traction element pulls the feed belt at a constant speed during the melting process of the electrode blank, and the powder is evenly dropped into the molten pool.
It realizes the automatic and uniform feeding of microalloy and deoxidizer, reduces labor costs and improves the quality uniformity of metal after remelting.
Smart Images
Figure CN223386168U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal smelting, in particular to a deoxidizer adding auxiliary device. Background Art
[0002] Electrode blanks are semi-finished materials used to manufacture specific types of electrodes, primarily in specialized metallurgical processes such as electroslag remelting (ESR) and vacuum ingot melting (VIM). Electrode blanks are typically cylindrical or square metal billets made through continuous casting or forging processes. They can be made from various alloy steels, tool steels, stainless steels, nickel-based alloys, titanium alloys, and more.
[0003] During the electroslag remelting process, a robotic arm that can move up and down holds the electrode blank, holding the cylindrical electrode blank in an upright position. The electrode blank then serves as one pole of the power supply, forming a current loop with the other pole (usually a melting crucible or bottom electrode). An arc forms between the electrode and the slag (or molten pool), generating high temperatures that melt the electrode blank. During the melting process, the electrode blank gradually melts upward from the bottom. The robotic arm synchronously drives the electrode blank downward at a constant speed according to the set downward speed, ensuring that the electrode blank remains within the molten pool. The molten metal drips into the molten pool below, where it is purified and solidified to form a high-quality remelted ingot. Furthermore, microalloys and deoxidizers must be continuously added to the molten pool during the electroslag remelting process. This process can produce metal products with high purity, uniform structure, and excellent performance, making them particularly suitable for manufacturing key components in high-end applications such as aerospace, energy, and mold manufacturing.
[0004] During the current electroslag remelting of electrode blanks, the required microalloy and deoxidizer additions must be calculated, then averaged out to the required amount per minute. Manual addition of microalloy and deoxidizer to the molten pool is then performed once per minute using tools. However, this manual, intermittent addition of microalloy and deoxidizer prevents uniform addition of microalloy and deoxidizer to the molten pool, thus impacting the quality of the metal after electroslag remelting. Utility Model Content
[0005] The utility model aims to provide a deoxidizer adding auxiliary device to solve the problem of uneven addition of microalloy and deoxidizer when an electrode blank is subjected to electroslag remelting.
[0006] To solve the above technical problems, the present invention provides the following technical solutions: a deoxidizer addition auxiliary device, comprising a support rod and a traction mechanism, wherein the support rod is installed next to the molten pool, and the top end of the support rod is fixedly connected to a guide groove, which is used to hold microalloy powder and deoxidizer powder and guide the held microalloy powder and deoxidizer powder into the molten pool;
[0007] The traction mechanism includes a feed belt and a traction element. The length of the feed belt is greater than the length of the guide groove and is laid on the bottom of the guide groove. The width of the feed belt is the same as the width of the inside of the guide groove. One end of the feed belt extends from the discharge end of the guide groove to the outside of the guide groove.
[0008] The traction element is used to pull the feeding belt at a uniform speed when the electrode blank is melted, so that the feeding belt slides out from the discharge end of the guide groove at a uniform speed.
[0009] The working principle of the utility model is as follows: before use, the feed belt is laid on the bottom of the guide groove, and then the evenly mixed microalloy powder and deoxidizer powder are laid into the guide groove. When the microalloy powder and deoxidizer are laid into the guide groove, they need to be located on the feed belt and laid with uniform thickness. During the electroslag remelting of the electrode blank, as the bottom end of the electrode blank held by the robotic arm gradually melts from bottom to top, the robotic arm also slowly and evenly drives the electrode blank downward. While the robotic arm moves downward, the traction element slowly and evenly pulls the feed belt downward from the discharge end of the guide groove. Since the feed moves horizontally in the guide groove, the feed belt moves downward when it moves to the discharge end of the guide groove. At this time, the microalloy powder and deoxidizer powder laid on its surface slowly and evenly fall from the discharge end of the guide groove into the molten pool. When the electrode blank is completely melted, the traction element also drives the last feed belt to add the microalloy powder and deoxidizer powder into the molten pool.
[0010] Beneficial effects of the utility model:
[0011] 1. This solution can realize the automatic addition of microalloy and deoxidizer during the electroslag remelting of electrode blanks without manual addition, saving labor costs and thus reducing production costs.
[0012] 2. The feeding belt is moved in the guide groove slowly and evenly by the traction element. The movement of the feeding belt drives the microalloy powder and deoxidizer powder laid on its surface to be slowly and evenly added to the molten pool. Compared with manual addition, the addition is more uniform and can better ensure the quality of the metal after remelting.
[0013] Furthermore, a stabilizing plate is fixedly connected to the bottom end of the support rod, so as to increase the contact surface between the bottom of the support rod and the ground through the stabilizing plate and thus improve the stability of the support rod.
[0014] Furthermore, the vertical cross section of the guide groove is in the shape of a "ㄩ". The purpose is that the guide groove of this shape is convenient for laying the feeding belt and is also convenient for adjusting the laying thickness when laying the microalloy powder and deoxidizer powder.
[0015] Furthermore, the discharge end of the guide trough is tilted downward by 5 to 15 degrees and is located directly above the molten pool. This arrangement facilitates the feeding belt to pull the microalloy powder and deoxidizer powder through the guide trough and out of the guide trough.
[0016] Furthermore, the pulling element includes a pulling chain, the top end of which is fixedly connected to the robotic arm, and the end of the feed belt extending from the discharge end of the guide trough is fixedly connected to the pulling chain. This arrangement allows the pulling chain to move downward synchronously under its own weight as the robotic arm moves downward. This downward movement of the pulling chain pulls the feed belt fixedly connected to it, thereby achieving the goal of synchronously and evenly adding microalloy powder and deoxidizer powder to the electrode blank as the robotic arm moves downward, pulling the feed belt synchronously.
[0017] Furthermore, a counterweight is fixedly connected to the bottom end of the traction chain to increase the weight of the traction chain through the counterweight to avoid the situation where the traction chain is too light to pull the feed belt.
[0018] Furthermore, the feed belt is made of a ceramic fiber belt with strong heat resistance and fire resistance, so as to avoid the feed belt being damaged by the high temperature of the molten pool. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a structural schematic diagram of a deoxidizer adding auxiliary device of the utility model;
[0020] Figure 2 Schematic diagram of the structure of the guide groove and the support rod in the embodiment. DETAILED DESCRIPTION
[0021] The following is further described in detail through specific implementation methods:
[0022] The reference numerals in the drawings of the specification include: robotic arm 1, electrode blank 2, molten pool 3, counterweight 4, stabilizing plate 5, support rod 6, guide groove 7, traction chain 8, and feed belt 9.
[0023] The embodiment is basically as shown in the attached Figure 1 and attached Figure 2 As shown:
[0024] A deoxidizer adding auxiliary device includes a support rod 6 and a traction mechanism. The bottom end of the support rod 6 is fixedly connected to a stabilizing plate 5. The support rod 6 is placed next to the molten pool 3 through the stabilizing plate 5. The top end of the support rod 6 is fixedly connected to a guide groove 7 with a vertical cross-section of "ㄩ" shape. The discharge end of the guide groove 7 is tilted downward by 5 to 15 degrees, and the discharge end of the guide groove 7 is located directly above the molten pool 3.
[0025] The traction mechanism includes a feed belt 9 and a traction element. The feed belt 9 is made of a ceramic fiber belt with strong heat resistance and fire resistance. The length of the feed belt 9 is greater than the length of the guide groove 7 and is laid on the bottom of the guide groove 7. The width of the feed belt 9 is the same as the width inside the guide groove 7. One end of the feed belt 9 extends from the discharge end of the guide groove 7 to the outside of the guide groove 7.
[0026] The traction element includes a traction chain 8 made of an iron chain. The top end of the traction chain 8 is fixedly connected to the robotic arm 1. The end of the feed belt 9 extending from the discharge end of the guide groove 7 is fixedly connected to the traction chain 8. A counterweight block 4 is fixedly connected to the bottom end of the traction chain 8.
[0027] The specific implementation process is as follows:
[0028] Before use, the feed belt 9 is laid on the bottom of the guide groove 7, and then the evenly mixed microalloy powder and deoxidizer powder are laid into the guide groove 7. When the microalloy powder and deoxidizer are laid into the guide groove 7, they need to be located on the upper surface of the feed belt 9 and the laying thickness must be uniform. During the electroslag remelting of the electrode blank 2, as the bottom end of the electrode blank 2 clamped by the robotic arm 1 gradually melts from bottom to top, the robotic arm 1 also drives the electrode blank 2 downward slowly and uniformly. While the robotic arm 1 moves downward, the traction chain 8 moves downward slowly and uniformly under the action of its own gravity. At the same time, the counterweight block 4 increases the gravity of the traction chain 8, making it have a stronger pulling force when moving downward. Therefore, when the traction chain 8 moves downward, the feed belt 9 is pulled downward by the discharge end of the guide groove 7. Since the feed moves horizontally in the guide groove 7, the feed belt 9 moves downward when it moves to the discharge end of the guide groove 7. At this time, the microalloy powder and deoxidizer powder laid on its surface slowly and uniformly fall from the discharge end of the guide groove 7 into the molten pool 3. When the electrode blank 2 is completely melted, the traction element also drives the last feed belt 9 to add the microalloy powder and deoxidizer powder to the molten pool 3.
Claims
1. A deoxidizer adding auxiliary device, characterized in that: The invention comprises a support rod and a traction mechanism, wherein the support rod is installed beside the molten pool, and the top end of the support rod is fixedly connected to a guide groove, which is used to hold microalloy powder and deoxidizer powder and guide the held microalloy powder and deoxidizer powder into the molten pool; The traction mechanism includes a feed belt and a traction element. The length of the feed belt is greater than the length of the guide groove and is laid on the bottom of the guide groove. The width of the feed belt is the same as the width of the inside of the guide groove. One end of the feed belt extends from the discharge end of the guide groove to the outside of the guide groove. The traction element is used to pull the feeding belt at a uniform speed when the electrode blank is melted, so that the feeding belt slides out from the discharge end of the guide groove at a uniform speed.
2. A deoxidizer adding auxiliary device according to claim 1, characterized in that: The bottom end of the support rod is fixedly connected with a stabilizing plate.
3. A deoxidizer adding auxiliary device according to claim 2, characterized in that: The vertical cross section of the guide groove is in the shape of "ㄩ".
4. A deoxidizer adding auxiliary device according to claim 3, characterized in that: The discharge end of the guide groove is inclined downward by 5 to 15 degrees, and the discharge end of the guide groove is located directly above the molten pool.
5. A deoxidizer adding auxiliary device according to claim 4, characterized in that: The traction element includes a traction chain, the top end of the traction chain is fixedly connected to the robot arm, and one end of the feeding belt extending from the discharge end of the guide groove is fixedly connected to the traction chain.
6. A deoxidizer adding auxiliary device according to claim 5, characterized in that: The bottom end of the traction chain is fixedly connected with a counterweight.
7. A deoxidizer adding auxiliary device according to claim 6, characterized in that: The feeding belt is made of a ceramic fiber belt with strong heat resistance and fire resistance.