A high-strength and high-temperature nickel-chromium alloy casting

Abstract

The utility model relates to the technical field of alloy castings, and provides a high-strength and high-temperature nickel-chromium alloy casting, comprising an electric heating alloy wire body, the electric heating alloy wire body comprising a central axis, a metal heating wire sleeved on the central axis, and a carbon fiber heating wire spirally wound alternately with the metal heating wire; a top cover is arranged at one end of the metal heating wire, and a bottom cover is arranged at one end of the carbon fiber heating wire; when a single heating wire needs to be replaced, the metal heating wire can be twisted in the opposite direction of the spiral of the carbon fiber heating wire and leave the central axis, and in this process, the metal heating wire will also squeeze a rotating ball, and at this time the rotating ball rotates left and right in a rotating groove; and the carbon fiber heating wire can be twisted in the opposite direction of the spiral of the metal heating wire and leave the central axis, so as to facilitate installation and use by staff.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy castings, and more specifically, to a high-strength and high-temperature nickel-chromium alloy casting. Background Art

[0002] Nickel-chromium alloy, commonly known as stainless steel, refers to a type of alloy that has comprehensive properties such as high strength and certain resistance to oxidation and corrosion at high temperatures of 650-1000°C. It is widely used in various fields, and electric heating alloy wire is also a type of nickel-chromium alloy.

[0003] Electric heating alloy wire is a heating wire mainly used in industrial heating equipment and civil heating appliances such as metallurgical machinery, medical, chemical, ceramic, electronic, glass, etc. It has the advantages of good plasticity, easy repair, high emissivity, non-magnetic, strong corrosion resistance and long service life. It is the more mainstream electric heating alloy wire nowadays.

[0004] Existing Chinese patent: An electric heating alloy heating wire CN207304963U discloses an electric heating alloy heating wire, which is alternately wound around a central axis with a metal heating wire and a carbon fiber heating wire spirally, so that the same type of heating wires cannot contact each other, thereby preventing short circuits.

[0005] However, the alternating winding method also has problems. After the metal heating wire and the carbon fiber heating wire are wound, they cannot be removed separately. The entire heating wire needs to be removed together and then untwisted together. When either of the two materials is partially damaged, it is not easy to replace them. For this reason, a high-strength and high-temperature nickel-chromium alloy casting is proposed to improve the existing problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a high-strength and high-temperature nickel-chromium alloy casting.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength and high-temperature nickel-chromium alloy casting, comprising an electric heating alloy wire body, the electric heating alloy wire body comprising a central axis, a metal heating wire sleeved on the central axis, and a carbon fiber heating wire spirally alternately wound with the metal heating wire; a top cover is provided at one end of the metal heating wire, a bottom cover is provided at one end of the carbon fiber heating wire, and the top cover and the bottom cover are distributed oppositely; a rotating groove is provided on the side wall of the central axis close to the bottom cover, a rotating ball is provided in the rotating groove, and the outer wall of the rotating ball can fit tightly with the inner wall of the rotating groove.

[0008] By adopting the above technical solution, when installing the electric heating alloy wire body, you can generally hold the top cover first, and by pressing the top cover, put the metal heating wire on the central axis, and then twist the bottom cover according to the winding direction and angle of the metal heating wire, so that the carbon fiber heating wire is wound in sequence along the winding direction of the metal heating wire, so that the carbon fiber heating wire and the metal heating wire are spirally wound around each other, thereby achieving the purpose of winding and fixing, making it impossible for the same type of heating wires to contact each other, and preventing short circuits.

[0009] The utility model is further configured as follows: the rotating balls are distributed in the middle of the spiral winding of the metal heating wire and the carbon fiber heating wire.

[0010] The utility model is further configured as follows: a movable groove is also provided in the rotating groove, the movable groove is vertically distributed with the central axis, and the diameter of the movable groove is equal to the maximum diameter of the rotating groove.

[0011] The utility model is further configured as follows: a movable spring is arranged in the movable groove, one end of the movable spring can be connected to the inner wall of the movable groove, and the other end can be tightly fitted with the outer wall of the rotating ball.

[0012] The utility model is further configured as follows: a clamping plate is further arranged at the bottom of the top cover, and a clamping groove is opened on the side wall of the clamping plate.

[0013] The utility model is further configured as follows: the sides of the clamping groove are all provided with arc-shaped surfaces, and the end of the carbon fiber heating wire away from the bottom cover can penetrate the clamping groove.

[0014] By adopting the above technical solution, when a single heating wire needs to be replaced, the metal heating wire can be twisted in the opposite direction of the spiral of the carbon fiber heating wire and leave the central axis. In this process, the metal heating wire will also squeeze the rotating ball, and the rotating ball will rotate left and right in the rotating groove; and the carbon fiber heating wire can be twisted in the opposite direction of the spiral of the metal heating wire and leave the central axis.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] (1) The spiral side wall of the metal heating wire will squeeze the rotating ball in the rotating groove, causing the rotating ball to rotate in the vertical direction. After passing the rotating ball, the rotating ball will limit the metal heating wire. During this process, since the outer wall of the rotating ball can fit tightly with the inner wall of the rotating groove, the rotating ball will not fall out of the rotating groove. On the one hand, the friction between the metal heating wire and the central axis is reduced, and on the other hand, the purpose of limiting and fixing the metal heating wire and the central axis is achieved.

[0017] (2) The rotating ball is squeezed by the metal heating wire, and the rotating ball retracts into the movable groove, squeezing the movable spring in the movable groove, and the movable spring changes from a free state to a compressed state; when the metal heating wire no longer squeezes the rotating ball, the movable spring changes from a compressed state to a free state, and ejects the rotating ball from the movable groove back into the rotating groove, so that the rotating ball limits and fixes the metal heating wire.

[0018] (3) When it is necessary to replace a single heating wire, the metal heating wire can be twisted in the opposite direction of the spiral of the carbon fiber heating wire and leave the central axis. During this process, the metal heating wire will also squeeze the rotating ball. At this time, the rotating ball rotates left and right in the rotating groove; while the carbon fiber heating wire can be twisted in the opposite direction of the spiral of the metal heating wire and leave the central axis, avoiding the problem that the metal heating wire and the carbon fiber heating wire cannot be removed separately after they are wound together, and the entire heating wire needs to be removed together and then untwisted together, which is convenient for the staff to install and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the high-strength and high-temperature nickel-chromium alloy casting of the utility model;

[0020] Figure 2 It is an exploded view of the electric heating alloy wire body in the utility model;

[0021] Figure 3 It is an isometric cross-sectional view of the central axis of the utility model;

[0022] Figure 4 It is a front cross-sectional view of the central axis of the utility model;

[0023] Figure 5 It is a schematic diagram of the overall structure of the top cover, the clamping plate, the clamping groove and the arc surface in the utility model;

[0024] Explanation of the reference numerals: 1. Heating alloy wire body; 11. Central axis; 111. Rotating groove; 112. Rotating ball; 113. Movable groove; 114. Movable spring; 12. Metal heating wire; 13. Carbon fiber heating wire; 14. Top cover; 141. Snap-in plate; 142. Snap-in groove; 143. Arc surface; 15. Bottom cover. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] See also Figure 1-Figure 5 , the utility model provides the following technical solutions:

[0028] Example 1, see Figure 1-Figure 5 A high-strength and high-temperature nickel-chromium alloy casting comprises an electric heating alloy wire body 1, the electric heating alloy wire body 1 comprises a central axis 11, a metal heating wire 12 sleeved on the central axis 11, and a carbon fiber heating wire 13 spirally wound alternately with the metal heating wire 12; a top cover 14 is provided at one end of the metal heating wire 12, a bottom cover 15 is provided at one end of the carbon fiber heating wire 13, and the top cover 14 and the bottom cover 15 are distributed relatively to each other.

[0029] Among them, when installing the electric heating alloy wire body 1, you can generally hold the top cover 14 first, and by pressing the top cover 14, put the metal heating wire 12 on the central axis 11, and then twist the bottom cover 15 according to the winding direction and angle of the metal heating wire 12, so that the carbon fiber heating wire 13 is wound in sequence along the winding direction of the metal heating wire 12, so that the carbon fiber heating wire 13 and the metal heating wire 12 are spirally wound around each other, thereby achieving the purpose of winding and fixing, making it impossible for the same type of heating wires to contact each other, and preventing short circuits.

[0030] See also Figure 1-Figure 4 Furthermore, a rotating groove 111 is opened on the side wall of the central axis body 11 close to the bottom cover 15, and a rotating ball 112 is arranged in the rotating groove 111. The outer wall of the rotating ball 112 can fit tightly with the inner wall of the rotating groove 111; the rotating ball 112 is distributed in the middle of the spiral winding of the metal heating wire 12 and the carbon fiber heating wire 13.

[0031] Among them, when the metal heating wire 12 is sleeved on the central axis 11, the spiral side wall of the metal heating wire 12 will squeeze the rotating ball 112 in the rotating groove 111, so that the rotating ball 112 rotates in the vertical direction. After passing the rotating ball 112, the rotating ball 112 will limit the metal heating wire 12. It should be noted that the rotating ball 112 can rotate 360 ​​degrees in the rotating groove 111. During this process, since the outer wall of the rotating ball 112 can fit tightly with the inner wall of the rotating groove 111, the rotating ball 112 will not fall out of the rotating groove 111. On the one hand, the friction between the metal heating wire 12 and the central axis 11 is reduced, and on the other hand, the purpose of limiting and fixing the metal heating wire 12 and the central axis 11 is achieved.

[0032] See also Figure 1-Figure 4Furthermore, a movable groove 113 is provided in the rotating groove 111, and the movable groove 113 is vertically distributed with the central axis body 11, and the diameter of the movable groove 113 is equal to the maximum diameter of the rotating groove 111; a movable spring 114 is provided in the movable groove 113, and one end of the movable spring 114 can be connected to the inner wall of the movable groove 113, and the other end can fit tightly with the outer wall of the rotating ball 112.

[0033] In the process of the metal heating wire 12 squeezing the rotating ball 112, the rotating ball 112 will retract into the movable groove 113 and squeeze the movable spring 114 in the movable groove 113, and the movable spring 114 will change from a free state to a compressed state; when the metal heating wire 12 no longer squeezes the rotating ball 112, the movable spring 114 will change from a compressed state to a free state, and eject the rotating ball 112 from the movable groove 113 back into the rotating groove 111, so that the rotating ball 112 limits and fixes the metal heating wire 12.

[0034] See also Figure 1 and Figure 5 Furthermore, a clamping plate 141 is provided at the bottom of the top cover 14 , a clamping groove 142 is provided on the side wall of the clamping plate 141 , and an arc surface 143 is provided on the side of the clamping groove 142 , and the end of the carbon fiber heating wire 13 away from the bottom cover 15 can pass through the clamping groove 142 .

[0035] When the carbon fiber heating wire 13 needs to be installed, the end of the carbon fiber heating wire 13 away from the bottom cover 15 can be twisted upward along the spiral direction of the metal heating wire 12, thereby achieving the purpose of winding the metal heating wire 12 and the carbon fiber heating wire 13. During this process, when the end of the carbon fiber heating wire 13 away from the bottom cover 15 passes through the clamping groove 142 of the clamping plate 141, it represents that the installation is completed.

[0036] The arc surface 143 is used to prevent the carbon fiber heating wire 13 from rubbing against the clamping plate 141 , thereby improving the use efficiency and life of the carbon fiber heating wire 13 .

[0037] It should be noted that, after the central axis 11, the metal heating wire 12 and the carbon fiber heating wire 13 are installed, if a single heating wire needs to be replaced, the metal heating wire 12 can be twisted in the opposite direction of the spiral of the carbon fiber heating wire 13 and leave the central axis 11. During this process, the metal heating wire 12 will also squeeze the rotating ball 112, and the rotating ball 112 will rotate left and right in the rotating groove 111; while the carbon fiber heating wire 13 can be twisted in the opposite direction of the spiral of the metal heating wire 12 and leave the central axis 11, thus avoiding the problem that the metal heating wire and the carbon fiber heating wire cannot be removed separately after they are wound together, and the entire heating wire needs to be removed together and then untwisted together, thereby facilitating installation and use by the staff.

[0038] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A high-strength and high-temperature nickel-chromium alloy casting, characterized in that: include, An electric heating alloy wire body (1), the electric heating alloy wire body (1) comprising a central axis (11), a metal electric heating wire (12) sleeved on the central axis (11), and a carbon fiber electric heating wire (13) spirally and alternately wound with the metal electric heating wire (12); A top cover (14) is disposed at one end of the metal heating wire (12), a bottom cover (15) is disposed at one end of the carbon fiber heating wire (13), and the top cover (14) and the bottom cover (15) are arranged relative to each other; A rotating groove (111) is provided on the side wall of the central axis (11) close to the bottom cover (15), a rotating ball (112) is arranged in the rotating groove (111), and the outer wall of the rotating ball (112) can be tightly fitted with the inner wall of the rotating groove (111).

2. The high-strength and high-temperature nickel-chromium alloy casting according to claim 1, characterized in that: The rotating ball (112) is distributed in the middle of the spiral winding of the metal heating wire (12) and the carbon fiber heating wire (13).

3. The high-strength and high-temperature nickel-chromium alloy casting according to claim 1, characterized in that: A movable groove (113) is also provided in the rotating groove (111). The movable groove (113) is vertically distributed with respect to the central axis (11). The diameter of the movable groove (113) is equal to the maximum diameter of the rotating groove (111).

4. The high-strength and high-temperature nickel-chromium alloy casting according to claim 3, characterized in that: A movable spring (114) is arranged in the movable groove (113); one end of the movable spring (114) can be connected to the inner wall of the movable groove (113), and the other end can be tightly fitted with the outer wall of the rotating ball (112).

5. The high-strength and high-temperature nickel-chromium alloy casting according to claim 1, characterized in that: A clamping plate (141) is also provided at the bottom of the top cover (14), and a clamping groove (142) is provided on the side wall of the clamping plate (141).

6. The high-strength and high-temperature nickel-chromium alloy casting according to claim 5, characterized in that: The side edges of the clamping groove (142) are each provided with an arc-shaped surface (143), and the end of the carbon fiber heating wire (13) away from the bottom cover (15) can pass through the clamping groove (142).

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