CN214175852U - Low-temperature sintering die of high-temperature-resistant magnetic core - Google Patents
Low-temperature sintering die of high-temperature-resistant magnetic core Download PDFInfo
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- CN214175852U CN214175852U CN202022375527.6U CN202022375527U CN214175852U CN 214175852 U CN214175852 U CN 214175852U CN 202022375527 U CN202022375527 U CN 202022375527U CN 214175852 U CN214175852 U CN 214175852U
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Abstract
The utility model provides a low temperature sintering mould of high temperature resistant magnetic core belongs to mechanical technical field. It has solved prior art and has had the poor problem of stability. The low-temperature sintering mold of the high-temperature-resistant magnetic core comprises a separation column, a first plate body and a second plate body, wherein the first plate body is in a flat plate shape, a plurality of through holes are formed in the first plate body in a penetrating mode, positioning columns which are identical in number with the through holes and correspond to the through holes in a position one to one are arranged on the second plate body, the upper ends of the positioning columns are embedded in the through holes in the first plate body, and the separation column is tightly pressed between the first plate body and the second plate body. The low-temperature sintering process of the high-temperature-resistant magnetic core is high in stability, and the mold is high in applicability.
Description
Technical Field
The utility model belongs to the technical field of machinery, a low temperature sintering mould of high temperature resistant magnetic core is related to.
Background
The high-temperature-resistant magnetic core needs to be sintered at low temperature in the preparation process, and the corresponding functional characteristics of the magnetic core raw material can not be damaged after low-temperature sintering.
The existing magnetic core preparation operation is usually sintered for a long time in a relatively low temperature environment, so that the sintering time is relatively long, and unqualified magnetic core products can be found only after the operation is finished in the sintering process, so that the stability of the magnetic core is relatively poor.
Disclosure of Invention
The first objective of the present invention is to solve the above problems in the prior art, and to provide a low temperature sintering process for a high temperature resistant magnetic core, which can stabilize the formation after low temperature sintering.
The second purpose of the utility model is to provide the mould that the sintering process used.
The first objective of the present invention can be achieved by the following technical solutions:
a low-temperature sintering process of a high-temperature-resistant magnetic core is characterized by comprising the following steps of:
A. pressing: putting the high-temperature-resistant magnetic core raw material into a pressing mold, and pressing and forming a magnetic core blank through the mold;
B. sintering step by step: heating the magnetic core blank in the environment of 150-180 ℃ for 20-30 minutes to obtain a primary sintering blank, heating the primary sintering blank in the environment of 120-130 ℃ for 20-30 minutes to obtain a secondary sintering blank, and heating the secondary sintering blank in the environment of 90-100 ℃ for 20-30 minutes to obtain a finished magnetic core.
The sintering process creatively divides the magnetic core blank formed by pressing into three sintering processes for preparation, the temperature of the first sintering process is higher, and a one-time sintered blank can be rapidly formed.
And obtaining a secondary sintering blank after secondary sintering, and obtaining a tertiary sintering blank after tertiary sintering.
It can be seen that the temperature is lower after the sintering procedure, so that the damage of high temperature to the functional characteristics of the magnetic core raw material is effectively avoided, and the yield of the magnetic core raw material is effectively improved.
Meanwhile, the three-time sintering process is performed in a segmented mode, unqualified products can be removed after primary sintering and secondary sintering, and therefore the unqualified products are prevented from entering the next process.
The second objective of the utility model is to provide a low temperature sintering mould of high temperature resistant magnetic core of suitability height and compact structure.
The utility model provides a low temperature sintering mould of high temperature resistant magnetic core which characterized in that, this mould includes the separation post and is flat plate body one and plate body two, has a plurality of through-holes that run through on the above-mentioned plate body one, has the reference column the same and position one-to-one with through-hole quantity on the above-mentioned plate body two, and inlay in the through-hole department on plate body one on the above-mentioned reference column upper end, and above-mentioned separation post is compressed tightly between plate body one and plate body two.
The first plate body is positioned at the upper part of the second plate body, and the separation column is tightly pressed between the first plate body and the second plate body. That is to say, there is the clearance between plate body one and the plate body two, and the reference column upper end inlays in the through-hole lower extreme of plate body one. It can be seen that, a positioning notch with an opening at the upper end is formed on the plate body, and the magnetic core blanks are placed at the positioning notch and then sent into the corresponding heating furnace, so that the sintering treatment can be carried out in batch and orderly.
In the low-temperature sintering mold for the high-temperature-resistant magnetic core, the upper part of the second plate body is provided with a concave positioning hole, the lower end of the separation column is embedded in the positioning hole, and the upper end of the separation column abuts against the lower part of the first plate body.
The separation column can be stably connected to the second plate body through the positioning hole. Of course, the depth of the positioning notch can be changed after the separation columns with different lengths are replaced, so that the magnetic cores of various types can be sintered.
In the low-temperature sintering mold for the high-temperature resistant magnetic core, the separation column is cylindrical.
In the low-temperature sintering mold for the high-temperature-resistant magnetic core, the first plate body and the second plate body are both made of cast iron materials.
In the low-temperature sintering mold of the high-temperature-resistant magnetic core, the separation column and the second plate body are of an integrated structure.
The first plate body and the second plate body of the cast iron material can be molded in one step and can also withstand relatively high temperatures.
Compared with the prior art, the low-temperature sintering process of the high-temperature resistant magnetic core is orderly subjected to low-temperature sintering for multiple times, so that the functional characteristics of the raw materials of the magnetic core are not damaged, and the stability is higher.
Simultaneously, the degree of depth of location notch can change according to actual conditions in this mould, consequently, can handle the operation to the magnetic core of different models, and its suitability is higher.
Drawings
Fig. 1 is a schematic structural view of the low-temperature sintering mold of the high-temperature resistant magnetic core.
In the figure, 1, a first plate body; 1a, a through hole; 2. a second plate body; 2a, a positioning column; 2b, positioning holes; 3. and (5) separating the column.
Detailed Description
Example one
The low-temperature sintering process of the high-temperature resistant magnetic core comprises the following steps:
A. pressing: putting the high-temperature-resistant magnetic core raw material into a pressing mold, and pressing and forming a magnetic core blank through the mold;
B. sintering step by step: heating the magnetic core blank in the environment of 150 ℃ for 20 minutes to obtain a primary sintered blank, heating the primary sintered blank in the environment of 12 ℃ for 20 minutes to obtain a secondary sintered blank, and heating the secondary sintered blank in the environment of 90 ℃ for 20 minutes to obtain a finished magnetic core.
This low temperature sintering mould of high temperature resistant magnetic core includes the separation post 3 and is flat plate body one 1 and plate body two 2, has a plurality of through-holes 1a that run through on the above-mentioned plate body one 1, has the same and position one-to-one's reference column 2a with through-hole 1a quantity on the above-mentioned plate body two 2, and inlay in through-hole 1a department on plate body one 1 on above-mentioned reference column 2a upper end, and above-mentioned separation post 3 is compressed tightly between plate body one 1 and plate body two 2.
The upper part of the second plate body 2 is provided with a concave positioning hole 2a, the lower end of the separation column 3 is embedded in the positioning hole 2b, and the upper end of the separation column 3 abuts against the lower part of the first plate body 1.
The separation column 3 has a cylindrical shape.
The plate body I1 and the plate body II 2 are both made of cast iron materials.
The separation column 3 and the second plate body 2 are of an integrated structure.
The sintering process creatively divides the magnetic core blank formed by pressing into three sintering processes for preparation, the temperature of the first sintering process is higher, and a one-time sintered blank can be rapidly formed.
And obtaining a secondary sintering blank after secondary sintering, and obtaining a tertiary sintering blank after tertiary sintering.
It can be seen that the temperature is lower after the sintering procedure, so that the damage of high temperature to the functional characteristics of the magnetic core raw material is effectively avoided, and the yield of the magnetic core raw material is effectively improved.
Meanwhile, the three-time sintering process is performed in a segmented mode, unqualified products can be removed after primary sintering and secondary sintering, and therefore the unqualified products are prevented from entering the next process.
The first plate body is positioned at the upper part of the second plate body, and the separation column is tightly pressed between the first plate body and the second plate body. That is to say, there is the clearance between plate body one and the plate body two, and the reference column upper end inlays in the through-hole lower extreme of plate body one. It can be seen that, a positioning notch with an opening at the upper end is formed on the plate body, and the magnetic core blanks are placed at the positioning notch and then sent into the corresponding heating furnace, so that the sintering treatment can be carried out in batch and orderly.
Example one
The low-temperature sintering process of the high-temperature resistant magnetic core comprises the following steps:
A. pressing: putting the high-temperature-resistant magnetic core raw material into a pressing mold, and pressing and forming a magnetic core blank through the mold;
B. sintering step by step: heating the magnetic core blank in an environment of 180 ℃ for 30 minutes to obtain a primary sintered blank, heating the primary sintered blank in an environment of 130 ℃ for 30 minutes to obtain a secondary sintered blank, and heating the secondary sintered blank in an environment of 100 ℃ for 30 minutes to obtain a finished magnetic core.
This low temperature sintering mould of high temperature resistant magnetic core includes the separation post 3 and is flat plate body one 1 and plate body two 2, has a plurality of through-holes 1a that run through on the above-mentioned plate body one 1, has the same and position one-to-one's reference column 2a with through-hole 1a quantity on the above-mentioned plate body two 2, and inlay in through-hole 1a department on plate body one 1 on above-mentioned reference column 2a upper end, and above-mentioned separation post 3 is compressed tightly between plate body one 1 and plate body two 2.
The upper part of the second plate body 2 is provided with a concave positioning hole 2a, the lower end of the separation column 3 is embedded in the positioning hole 2b, and the upper end of the separation column 3 abuts against the lower part of the first plate body 1.
The separation column 3 has a cylindrical shape.
The plate body I1 and the plate body II 2 are both made of cast iron materials.
The separation column 3 and the second plate body 2 are of an integrated structure.
The sintering process creatively divides the magnetic core blank formed by pressing into three sintering processes for preparation, the temperature of the first sintering process is higher, and a one-time sintered blank can be rapidly formed.
And obtaining a secondary sintering blank after secondary sintering, and obtaining a tertiary sintering blank after tertiary sintering.
It can be seen that the temperature is lower after the sintering procedure, so that the damage of high temperature to the functional characteristics of the magnetic core raw material is effectively avoided, and the yield of the magnetic core raw material is effectively improved.
Meanwhile, the three-time sintering process is performed in a segmented mode, unqualified products can be removed after primary sintering and secondary sintering, and therefore the unqualified products are prevented from entering the next process.
The first plate body is positioned at the upper part of the second plate body, and the separation column is tightly pressed between the first plate body and the second plate body. That is to say, there is the clearance between plate body one and the plate body two, and the reference column upper end inlays in the through-hole lower extreme of plate body one. It can be seen that, a positioning notch with an opening at the upper end is formed on the plate body, and the magnetic core blanks are placed at the positioning notch and then sent into the corresponding heating furnace, so that the sintering treatment can be carried out in batch and orderly.
Example one
The low-temperature sintering process of the high-temperature resistant magnetic core comprises the following steps:
A. pressing: putting the high-temperature-resistant magnetic core raw material into a pressing mold, and pressing and forming a magnetic core blank through the mold;
B. sintering step by step: heating the magnetic core blank in an environment of 160 ℃ for 22 minutes to obtain a primary sintered blank, heating the primary sintered blank in an environment of 123 ℃ for 22 minutes to obtain a secondary sintered blank, and heating the secondary sintered blank in an environment of 94 ℃ for 23 minutes to obtain a finished magnetic core.
This low temperature sintering mould of high temperature resistant magnetic core includes the separation post 3 and is flat plate body one 1 and plate body two 2, has a plurality of through-holes 1a that run through on the above-mentioned plate body one 1, has the same and position one-to-one's reference column 2a with through-hole 1a quantity on the above-mentioned plate body two 2, and inlay in through-hole 1a department on plate body one 1 on above-mentioned reference column 2a upper end, and above-mentioned separation post 3 is compressed tightly between plate body one 1 and plate body two 2.
The upper part of the second plate body 2 is provided with a concave positioning hole 2a, the lower end of the separation column 3 is embedded in the positioning hole 2b, and the upper end of the separation column 3 abuts against the lower part of the first plate body 1.
The separation column 3 has a cylindrical shape.
The plate body I1 and the plate body II 2 are both made of cast iron materials.
The separation column 3 and the second plate body 2 are of an integrated structure.
The sintering process creatively divides the magnetic core blank formed by pressing into three sintering processes for preparation, the temperature of the first sintering process is higher, and a one-time sintered blank can be rapidly formed.
And obtaining a secondary sintering blank after secondary sintering, and obtaining a tertiary sintering blank after tertiary sintering.
It can be seen that the temperature is lower after the sintering procedure, so that the damage of high temperature to the functional characteristics of the magnetic core raw material is effectively avoided, and the yield of the magnetic core raw material is effectively improved.
Meanwhile, the three-time sintering process is performed in a segmented mode, unqualified products can be removed after primary sintering and secondary sintering, and therefore the unqualified products are prevented from entering the next process.
The first plate body is positioned at the upper part of the second plate body, and the separation column is tightly pressed between the first plate body and the second plate body. That is to say, there is the clearance between plate body one and the plate body two, and the reference column upper end inlays in the through-hole lower extreme of plate body one. It can be seen that, a positioning notch with an opening at the upper end is formed on the plate body, and the magnetic core blanks are placed at the positioning notch and then sent into the corresponding heating furnace, so that the sintering treatment can be carried out in batch and orderly.
Claims (5)
1. The utility model provides a low temperature sintering mould of high temperature resistant magnetic core which characterized in that, this mould includes the separation post and is flat plate body one and plate body two, has a plurality of through-holes that run through on the above-mentioned plate body one, has the reference column the same and position one-to-one with through-hole quantity on the above-mentioned plate body two, and inlay in the through-hole department on plate body one on the above-mentioned reference column upper end, and above-mentioned separation post is compressed tightly between plate body one and plate body two.
2. The mold for low-temperature sintering of a refractory core according to claim 1, wherein the upper portion of the second plate has a recessed positioning hole, the lower end of the separation column is inserted into the positioning hole, and the upper end of the separation column abuts against the lower portion of the first plate.
3. The mold for low-temperature sintering of a refractory core according to claim 2, wherein the separation column has a cylindrical shape.
4. The mold for low-temperature sintering of a refractory core according to claim 3, wherein the first plate and the second plate are both made of cast iron.
5. The mold for low-temperature sintering of a refractory core according to claim 4, wherein the separation column is integrated with the second plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022375527.6U CN214175852U (en) | 2020-10-22 | 2020-10-22 | Low-temperature sintering die of high-temperature-resistant magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022375527.6U CN214175852U (en) | 2020-10-22 | 2020-10-22 | Low-temperature sintering die of high-temperature-resistant magnetic core |
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| Publication Number | Publication Date |
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| CN214175852U true CN214175852U (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022375527.6U Active CN214175852U (en) | 2020-10-22 | 2020-10-22 | Low-temperature sintering die of high-temperature-resistant magnetic core |
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| CN (1) | CN214175852U (en) |
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