Plug and heat treatment furnace for producing plug

Abstract

The utility model relates to an ejector head and a heat treatment furnace for producing the ejector head, and the main technical scheme is that the ejector head comprises an ejector head body and an ejector rod, and a wear-resistant layer is arranged outside the ejector head body; according to the other technical scheme, the heat treatment furnace used for producing the top heads comprises a heat treatment furnace body and a containing table, the top of the containing table is connected with a plurality of partition plates, every two adjacent partition plates are provided with containing gaps for containing the top heads at intervals, and the partition plates are provided with a plurality of first communicating holes. The plug has the following effects: during use, the wear-resistant layer is additionally arranged, so that the situation that an oxide layer falls off is avoided as much as possible, the failure probability of the plug is reduced, and the service life of the plug is prolonged; and a first communicating hole is formed in the partition plate, so that every two adjacent placing gaps communicate with each other, hot air in the heat treatment furnace body can circulate in the placing gaps through the first communicating holes, and the heat treatment effect is improved.

Description

Technical Field

[0001] This application relates to the field of perforated mandrels, and more particularly to a mandrel and a heat treatment furnace for producing the mandrel. Background Technology

[0002] The working conditions of the piercing mandrel are extremely harsh. During the piercing process, the mandrel is subjected to high temperature and high pressure, and bears large axial, radial and tangential stresses and deformation friction, as well as thermal stress and thermal fatigue stress under cooling conditions.

[0003] Regarding the aforementioned technologies, during continuous production, the oxide layer on the mandrel is prone to peeling off during the piercing process, increasing the likelihood of mandrel failure and affecting its service life. Utility Model Content

[0004] In order to extend the service life of the mandrel, this application provides a mandrel and a heat treatment furnace for producing the mandrel.

[0005] Firstly, the top head provided in this application adopts the following technical solution:

[0006] A mandrel includes a mandrel body and a mandrel rod, wherein the mandrel body is provided with a wear-resistant layer.

[0007] By adopting the above technical solution and adding a wear-resistant layer, the oxide layer is prevented from peeling off as much as possible, reducing the probability of mandrel failure and extending the service life of the mandrel.

[0008] On the other hand, this application provides a heat treatment furnace, which adopts the following technical solution:

[0009] A heat treatment furnace includes a furnace body and a placement platform. The furnace body has a feed inlet at one end and an opening / closing element for opening or closing the feed inlet is connected to the furnace body at one end. The placement platform has a plurality of partitions at intervals on its top. Adjacent partitions are provided with a placement gap for placing a top, and each placement gap is for placing only one top. The partitions have a plurality of first connecting holes that connect adjacent placement gaps.

[0010] By adopting the above technical solution, each mandrel is placed in its respective placement gap during use, thereby minimizing contact between the mandrels. The partition plate is provided with a first connecting hole, which connects two adjacent placement gaps. This allows hot air inside the heat treatment furnace to circulate within each placement gap through the first connecting hole, thereby improving the heat treatment effect.

[0011] Optionally, the placement platform is provided with a plurality of second connecting holes, which communicate with the placement gap.

[0012] By adopting the above technical solution and adding a second connecting hole, hot air inside the heat treatment furnace body can enter the placement gap through the second connecting hole, thereby facilitating the heat treatment operation of the top head located in the middle of the placement platform and improving the heat treatment effect.

[0013] Optionally, the partition plate is connected to a number of protrusions near the placement gap, the protrusions being used to contact the top head.

[0014] By adopting the above technical solution and adding a protrusion, when in use, the top head is placed in the placement gap, and the top head contacts the protrusion. The protrusion drives the top head away from the partition, thereby reducing the situation where the top head blocks the first connecting hole and facilitating the flow of hot air through the first connecting hole.

[0015] Optionally, the partition is connected to an adjustment assembly for moving the partition and thus adjusting the distance between two adjacent partitions.

[0016] By adopting the above technical solution, the distance between the partitions can be adjusted by adjusting the moving partitions of the components, thereby changing the size of the placement gap, so that the placement gap can adapt to the top of different sizes.

[0017] Optionally, the adjustment component includes a limiting block and a connecting piece. The limiting block is connected to the partition plate. A limiting groove is formed at one end of the placement platform. The limiting block slides and engages with the inner wall of the limiting groove. The limiting block is slidably connected in the limiting groove and is used to adjust the distance between the partition plates. The partition plate is detachably connected to the placement platform through the connecting piece.

[0018] By adopting the above technical solution, when the partition is moved, the limiting block is slidably connected in the limiting groove. The limiting block and the inner wall of the limiting groove slide together to limit the movement direction of the partition, so that the partition moves stably in the predetermined direction. When the partition moves to the required position, the partition is connected to the corresponding position by the connecting piece, so as to facilitate the adjustment of the distance between the partitions.

[0019] Optionally, the limiting block slides along the length of the partition and engages with the partition.

[0020] By adopting the above technical solution, the partition may be damaged after long-term use. When disassembling the partition, the limiting block is moved along the length of the partition to move the limiting block away from the limiting groove, thereby facilitating the disassembly of the partition.

[0021] Optionally, the limiting block is connected to a first spring, the other end of which is connected to a partition. When the limiting block moves away from the limiting groove, the first spring deforms.

[0022] By adopting the above technical solution, when installing the partition, the limiting block is moved along the length of the partition, causing the first spring to deform, which facilitates the partition to approach the placement table. When the partition is placed on the placement table, the limiting block is released, the first spring returns to its shape and drives the limiting block to move along the length of the partition, and drives the limiting block to reset, so that the limiting block is embedded in the limiting groove. The addition of the first spring facilitates the reset of the limiting block and improves work efficiency.

[0023] Optionally, a number of support rods are connected to the top of the placement platform. The support rods are spaced apart and are located between the partition and the placement platform. The support rods are used to support the top head and drive the top head away from the second connecting hole.

[0024] By adopting the above technical solution and adding a support rod, the top head is positioned on the top of the support rod during use, thereby reducing the possibility of the top head blocking the second connecting hole and improving the heat treatment effect.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. Add a wear-resistant layer to minimize oxide layer peeling, reduce the probability of mandrel failure, and extend the service life of the mandrel;

[0027] 2. When in use, place each top head in its respective placement gap to minimize contact between the top heads. The partition plate has a first connecting hole to connect two adjacent placement gaps, allowing hot air inside the heat treatment furnace to circulate within each placement gap through the first connecting hole, thereby improving the heat treatment effect.

[0028] 3. A second connecting hole is added so that hot air inside the heat treatment furnace can enter the placement gap through the second connecting hole, thereby facilitating heat treatment operations at the top head located in the middle of the placement platform and improving the heat treatment effect. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of a top part in this application.

[0030] Figure 2 This is a cross-sectional view of one of the top heads in this application.

[0031] Figure 3 This is a three-dimensional structural diagram of a heat treatment furnace according to this application.

[0032] Figure 4 This is a top view of a heat treatment furnace according to this application.

[0033] Figure 5 This application Figure 4 Sectional view along the AA direction.

[0034] Figure 6 This application Figure 4 Sectional view along the BB direction.

[0035] Explanation of reference numerals in the attached drawings: 100, top head body; 110, wear-resistant layer; 200, top rod; 300, heat treatment furnace body; 310, feed inlet; 320, closed door; 400, placement platform; 410, second connecting hole; 420, support rod; 430, limiting groove; 440, retaining ring; 500, moving assembly; 510, guide rail; 520, roller; 600, adjusting assembly; 610, limiting block; 611, connecting rod; 620, bolt; 700, partition plate; 710, placement gap; 720, first connecting hole; 730, protrusion; 740, sliding groove; 741, first spring. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0037] Example 1:

[0038] This application discloses a top head. (Refer to...) Figure 1 and Figure 2 A type of mandrel includes a mandrel body 100 and a mandrel rod 200. The mandrel body 100 is provided with a wear-resistant layer 110, which is made of ternary boride-based metal ceramic.

[0039] The implementation principle of a mandrel according to an embodiment of this application is as follows: ternary boride-based cermets possess excellent mechanical properties, chemical stability, and outstanding wear and corrosion resistance. An additional wear-resistant layer 110 is added to the outside of the mandrel body 100, which can reduce the detachment of the oxide layer during perforation, reduce the probability of mandrel failure, and extend the service life of the mandrel.

[0040] Example 2:

[0041] Based on the above-described top head, this application also discloses a heat treatment furnace.

[0042] Reference Figure 3 , Figure 4 and Figure 5A heat treatment furnace includes a furnace body 300, a placement platform 400, a moving assembly 500, and an adjusting assembly 600. The furnace body 300 has a feed inlet 310 at one end along its length. An opening / closing element for opening or closing the feed inlet 310 is connected to one end of the furnace body 300. The moving assembly 500 is used to move the placement platform 400 into or away from the furnace body. A plurality of partitions 700 are connected to the top of the placement platform 400. The partitions 700 are spaced apart, and adjacent partitions 700 are spaced apart by a placement gap 710 for placing a single head. The adjusting assembly 600 has several components, each used to move the partitions 700 and adjust the distance between them. Each partition 700 has a plurality of first connecting holes 720, which connect adjacent placement gaps 710. Each mandrel is placed within its respective placement gap 710, thereby reducing contact between mandrels and improving the heat treatment effect.

[0043] Reference Figure 3 and Figure 6 The opening and closing component is a sealing door 320, which is slidably connected to one end of the heat treatment furnace body 300 in the vertical direction. The sealing door 320 is used to open or close the feed inlet 310. The moving component 500 includes a guide rail 510 and rollers 520. The length direction of the guide rail 510 is consistent with the length direction of the heat treatment furnace body 300, and one end of the guide rail 510 is located inside the heat treatment furnace body 300 along its length direction. The rollers 520 are connected to the bottom of the placement platform 400 and are rotatably connected to the guide rail 510.

[0044] Reference Figure 3 and Figure 5 The placement platform 400 has a retaining ring 440 connected to its top. The retaining ring 440 is square-ring shaped, and several partitions 700 are disposed within the retaining ring 440. The placement platform 400 has several second connecting holes 410, the length of which is aligned with the width of the placement platform 400. These second connecting holes 410 are spaced apart along the length of the placement platform 400 and communicate with the placement gaps 710. The placement platform 400 also has several support rods 420 connected to its top. The length of these support rods is aligned with the length of the placement platform 400 and is spaced apart along the width of the placement platform 400. The support rods 420 are located below the partitions 700. During use, the top end contacts the support rod 420. The top end is positioned within the placement gap 710 and in contact with the support rod 420, thus facilitating the entry of hot air into the placement gap 710 through the second connecting holes 410.

[0045] Reference Figure 5 and Figure 6The partition 700 has several protrusions 730 connected to both sides along the length of the placement platform 400. The protrusions 730 are used to contact the top head. The adjustment assembly 600 includes a limiting block 610 and a connecting piece. The limiting block 610 is slidably connected to both ends of the partition 700 along its length. The placement platform 400 has limiting grooves 430 at both ends along its width. The length of the limiting grooves 430 is consistent with the length of the placement platform 400. The limiting block 610 slides and engages with the inner wall of the limiting groove 430 along the length of the placement platform 400.

[0046] Reference Figure 6 A connecting rod 611 is connected to the top of the limiting block 610. The partition 700 has sliding grooves 740 at both ends along its length, with the length of the sliding grooves 740 aligned with the length of the partition 700. The connecting rods 611 are inserted into the partition 700 through the sliding grooves 740, and each connecting rod 611 slides within its respective sliding groove 740 along the length of the partition 700. A first spring 741 is connected within each sliding groove 740, with its length aligned with the length of the connecting rod 611. One end of the first spring 741 is connected to the inner wall of the sliding groove 740, and the other end is connected to the connecting rod 611. When the limiting block 610 moves away from the limiting groove 430, the first spring 741 is stretched and deformed. The connecting component is a bolt 620, which passes through the limiting block 610 along the width of the placement platform 400, with one end of the bolt used to abut against the inner wall of the limiting groove 430. When replacing the partition 700, the limiting block 610 is moved along the length of the partition 700 so that the limiting block 610 is away from the limiting groove 430, thereby making it easier for the partition 700 to move away from the placement table 400.

[0047] The implementation principle of a heat treatment furnace according to an embodiment of this application is as follows: During use, the top head is placed in the placement gap 710, and the top head contacts the protrusion 730, and the bottom of the top head contacts the top of the support rod 420. During heat treatment, hot air flows between each placement gap 710 through the first connecting hole 720, and hot air can enter the placement gap 710 through the first connecting hole 720, so that all parts of the top head are heated, thereby improving the heat treatment effect and improving product quality.

[0048] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A type of top head, characterized in that: It includes a top head body (100) and a top rod (200), and the top head body (100) is provided with a wear-resistant layer (110).

2. A heat treatment furnace for producing the mandrel as described in claim 1, characterized in that: The device includes a heat treatment furnace body (300) and a placement platform (400). The heat treatment furnace body (300) has a feed inlet (310) at one end and an opening / closing element for opening or closing the feed inlet (310) is connected to one end of the heat treatment furnace body (300). The top of the placement platform (400) is connected to several partitions (700). The partitions (700) are spaced apart and adjacent partitions (700) are spaced apart by a placement gap (710) for placing a top. Each placement gap (710) is for placing only one top. Each partition (700) has several first connecting holes (720) that connect two adjacent placement gaps (710).

3. A heat treatment furnace according to claim 2, characterized in that: The placement platform (400) has a plurality of second connecting holes (410), which are connected to the placement gap (710).

4. A heat treatment furnace according to claim 2, characterized in that: The partition (700) has several protrusions connected to one end near the placement gap (710), and the protrusions are used to contact the top head.

5. A heat treatment furnace according to claim 2, characterized in that: The partition (700) is connected to an adjustment component (600), which is used to move the partition (700) and thereby adjust the distance between two adjacent partitions (700).

6. A heat treatment furnace according to claim 5, characterized in that: The adjustment component (600) includes a limiting block (610) and a connector. The limiting block (610) is connected to the partition (700). A limiting groove (430) is provided at one end of the placement platform (400). The limiting block (610) slides and engages with the inner wall of the limiting groove (430). The limiting block (610) is slidably connected in the limiting groove (430) and is used to adjust the distance between the partitions (700). The partition (700) is detachably connected to the placement platform (400) through the connector.

7. A heat treatment furnace according to claim 6, characterized in that: The limiting block (610) slides along the length of the partition (700) and engages with the partition (700).

8. A heat treatment furnace according to claim 7, characterized in that: The limiting block (610) is connected to a first spring (741), and the other end of the first spring (741) is connected to the partition (700). When the limiting block (610) moves away from the limiting groove (430), the first spring (741) deforms.

9. A heat treatment furnace according to claim 3, characterized in that: The top of the placement platform (400) is connected to a plurality of support rods (420), which are spaced apart. The support rods (420) are located between the partition (700) and the placement platform (400). The support rods (420) are used to support the top head and drive the top head away from the second connecting hole (410).

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