CN210974799U - Die steel vacuum heating air flow erosion resistant chamber - Google Patents
Die steel vacuum heating air flow erosion resistant chamber Download PDFInfo
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- CN210974799U CN210974799U CN201921689048.2U CN201921689048U CN210974799U CN 210974799 U CN210974799 U CN 210974799U CN 201921689048 U CN201921689048 U CN 201921689048U CN 210974799 U CN210974799 U CN 210974799U
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Abstract
The utility model discloses a resistant air current erosion room of mould steel vacuum heating, include the vacuum furnace that forms by graphite cake concatenation or integrated into one piece, graphite cloth has been laid to the vacuum furnace inner wall, graphite cloth is woven by the graphite line and is formed, there are 8 tie points so that graphite cloth and vacuum furnace inner wall laminating are connected at least between graphite cloth and the vacuum furnace inner wall. The graphite cloth is softer than the graphite plate, and the toughness of the graphite cloth is far better than that of the graphite plate, so that the graphite cloth can fluctuate along with air flow when being eroded by high-speed high-pressure nitrogen, thereby reducing erosion damage of the air flow to the graphite cloth and prolonging the service life of the vacuum furnace.
Description
Technical Field
The utility model belongs to the technical field of mould steel vacuum heat treatment technique and specifically relates to a mould steel vacuum heating is able to bear or endure air current erosion room.
Background
In order to increase the hardness of the die steel, the die steel is quenched to increase the hardness of the steel, and the specific operation steps are that the die steel is heated to a temperature between 911 ℃ and 1392 ℃ to transform the steel into austenite, and then the austenite is rapidly cooled to transform the steel into martensite.
The die steel is subjected to heat treatment such as quenching by a vacuum heat treatment apparatus. The vacuum heat treatment apparatus has a double structure including a vacuum furnace which is a sealed chamber made of a heat insulating material. Heating the die steel at a high temperature in a vacuum furnace in a vacuum state, and introducing high-speed high-pressure nitrogen into the vacuum furnace to cool the die steel after the die steel is heated to a set temperature. The vacuum furnace has the advantages that the wall thickness becomes thinner after the vacuum furnace is subjected to high-speed high-pressure nitrogen for a long time, so that the heat insulation effect is reduced, the heating power is increased, and the energy consumption is increased. In severe cases, holes appear on the vacuum furnace wall, the furnace wall needs to be frequently replaced, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a resistant air current erosion, long service life's resistant air current erosion room of mould steel vacuum heating.
In order to achieve the above purpose, the utility model adopts the following technical scheme: resistant air current erosion room of mould steel vacuum heating includes the vacuum furnace that is formed by graphite plate concatenation or integrated into one piece, graphite cloth has been laid to the vacuum furnace inner wall, graphite cloth is woven by the graphite line and is formed, there are 8 tie points so that graphite cloth and vacuum furnace inner wall laminating are connected at least between graphite cloth and the vacuum furnace inner wall. The graphite cloth is softer than the graphite plate, and the toughness of the graphite cloth is far better than that of the graphite plate, so that the graphite cloth can fluctuate along with air flow when being eroded by high-speed high-pressure nitrogen, thereby reducing erosion damage of the air flow to the graphite cloth and prolonging the service life of the vacuum furnace.
As a further improvement of the utility model, at least one connecting line is arranged between the graphite cloth and the inner wall of the vacuum furnace. The effect that the connecting wire connects for the tie point is better, prevents that graphite cloth from droing from the vacuum furnace inner wall.
As a further improvement of the utility model, the graphite cloth comprises warp yarns and weft yarns which are interwoven in a mutually perpendicular mode, and the warp yarns and the weft yarns are composed of graphite. The warp yarns and the weft yarns are mutually and vertically interwoven to form a fiber trend, so that the warp yarns and the weft yarns can adapt to nitrogen flows flowing in different directions.
As a further improvement of the utility model, the warp and the weft are interwoven once at intervals of 3-6. The graphite cloth obtained by weaving the warp yarns and the weft yarns in the arrangement sequence has high knitting compactness, and the graphite yarns are easy to relatively slide, so that the high compactness of the graphite cloth is ensured and the flexibility of the graphite cloth is improved.
As a further improvement of the utility model, the diameter of the warp yarn is 10-100 μm, and the diameter of the weft yarn is 10-100 μm. The smaller the diameter of the warp and weft yarns is, the higher the weaving density is, but the diameter of the warp and weft yarns is too small, so that the warp and weft yarns are easy to break in the weaving process.
As a further improvement of the utility model, per square inch the arrangement radical of graphite cloth warp is 20 ~ 250, per square inch the arrangement radical of graphite cloth woof is 10 ~ 150. The obtained graphite cloth has high compactness according to the arrangement of the warp and weft yarn number in each square inch.
As the further improvement of the utility model, the warp sets up to 35 ~ 65, the woof sets up to 20 ~ 60, and the compactness of graphite cloth is high.
As a further improvement of the utility model, the width of the graphite cloth is 50-250 cm. The width of the graphite cloth can be adjusted according to the area of the inner wall of the vacuum furnace, so that the graphite cloth arranged on the inner wall of the vacuum furnace is integrally formed, splicing is not needed, and the erosion resistance of the graphite cloth is better.
As a further improvement of the utility model, every square inch the arrangement radical of graphite cloth warp is 150 ~ 220, every square inch the arrangement radical of graphite cloth woof is 90 ~ 110.
As a further improvement of the utility model, every square inch the arrangement radical of graphite cloth warp is 190 ~ 200, every square inch the arrangement radical of graphite cloth woof is 100 ~ 105.
Compared with the prior art, the beneficial effects of the utility model are that: the graphite cloth is softer than the graphite plate, and the toughness of the graphite cloth is far better than that of the graphite plate, so that the graphite cloth can fluctuate along with air flow when being eroded by high-speed high-pressure nitrogen, thereby reducing erosion damage of the air flow to the graphite cloth and prolonging the service life of the vacuum furnace.
Drawings
FIG. 1 is a cross-sectional view of the device of the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1.
The reference numerals are explained below: 1. a graphite plate; 2. graphite cloth; 3. warp yarns; 4. and (4) weft yarns.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper," and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1:
as shown in figures 1 and 2, the die steel vacuum heating airflow erosion resistant chamber comprises a rectangular vacuum furnace formed by splicing graphite plates 1, graphite cloth 2 is laid on the inner wall of the vacuum furnace, the graphite cloth 2 is formed by weaving graphite wires, and the graphite cloth 2 is connected with the inner wall of the vacuum furnace along 12 edges of the vacuum furnace. The graphite cloth 2 is woven in a seamless knitting mode, the diameter of the warp yarn 3 is 50 micrometers, and the diameter of the weft yarn 4 is 50 micrometers; the number of the warp yarns 3 is 65, the number of the weft yarns 4 is 40, the number of the warp yarns 3 per square inch of the graphite cloth 2 is 200, and the number of the weft yarns 4 per square inch of the graphite cloth 2 is 108. The width of the graphite cloth 2 is 200 cm.
Example 2:
as shown in figures 1 and 2, the die steel vacuum heating airflow erosion resistant chamber comprises a rectangular vacuum furnace formed by splicing graphite plates 1, graphite cloth 2 is laid on the inner wall of the vacuum furnace, the graphite cloth 2 is formed by weaving graphite wires, and the graphite cloth 2 is connected with the inner wall of the vacuum furnace along 12 edges of the vacuum furnace. The graphite cloth 2 is woven in a seamless knitting mode, the diameter of the warp yarn 3 is 100 micrometers, and the diameter of the weft yarn 4 is 100 micrometers; the number of the warp yarns 3 is 35, the number of the weft yarns 4 is 20, the number of the warp yarns 3 per square inch of the graphite cloth 2 is 20, and the number of the weft yarns 4 per square inch of the graphite cloth 2 is 10. The width of the graphite cloth 2 is 250 cm.
Example 3:
as shown in figures 1 and 2, the die steel vacuum heating airflow erosion resistant chamber comprises a rectangular vacuum furnace formed by splicing graphite plates 1, graphite cloth 2 is laid on the inner wall of the vacuum furnace, the graphite cloth 2 is formed by weaving graphite wires, and the graphite cloth 2 is connected with the inner wall of the vacuum furnace along 12 edges of the vacuum furnace. The graphite cloth 2 is woven in a seamless knitting mode, the diameter of the warp yarn 3 is 10 micrometers, and the diameter of the weft yarn 4 is 10 micrometers; the number of the warp yarns 3 is 65, the number of the weft yarns 4 is 60, the number of the warp yarns 3 per square inch of the graphite cloth 2 is 250, and the number of the weft yarns 4 per square inch of the graphite cloth 2 is 150. The width of the graphite cloth 2 is 250 cm.
Example 4:
as shown in figures 1 and 2, the die steel vacuum heating airflow erosion resistant chamber comprises a rectangular vacuum furnace formed by splicing graphite plates 1, graphite cloth 2 is laid on the inner wall of the vacuum furnace, the graphite cloth 2 is formed by weaving graphite wires, and the graphite cloth 2 is connected with the inner wall of the vacuum furnace along 12 edges of the vacuum furnace. The graphite cloth 2 is woven in a seamless knitting mode, the diameter of the warp yarn 3 is 15 micrometers, and the diameter of the weft yarn 4 is 15 micrometers; the number of the warp yarns 3 is 65, the number of the weft yarns 4 is 60, the number of the warp yarns 3 per square inch of the graphite cloth 2 is 220, and the number of the weft yarns 4 per square inch of the graphite cloth 2 is 110. The width of the graphite cloth 2 is 250 cm.
Example 5:
the die steel vacuum heating air flow erosion resistant chamber comprises a cylindrical vacuum furnace (not shown) formed by integrally forming a graphite plate 1, graphite cloth 2 is laid on the inner wall of the vacuum furnace, the graphite cloth 2 is woven by graphite wires, and the graphite cloth 2 is connected with the inner wall of the vacuum furnace along 12 edges of the vacuum furnace. The graphite cloth 2 is woven in a seamless knitting mode, the diameter of the warp yarn 3 is 15 micrometers, and the diameter of the weft yarn 4 is 15 micrometers; the number of the warp yarns 3 is 65, the number of the weft yarns 4 is 60, the number of the warp yarns 3 per square inch of the graphite cloth 2 is 200, and the number of the weft yarns 4 per square inch of the graphite cloth 2 is 105. The width of the graphite cloth 2 is 250 cm.
Example 6:
as shown in figures 1 and 2, the die steel vacuum heating airflow erosion resistant chamber comprises a rectangular vacuum furnace formed by splicing graphite plates 1, graphite cloth 2 is laid on the inner wall of the vacuum furnace, the graphite cloth 2 is formed by weaving graphite wires, and the graphite cloth 2 is connected with the inner wall of the vacuum furnace along 12 edges of the vacuum furnace. The graphite cloth 2 is woven in a weft knitting mode, the diameter of the warp yarn 3 is 20 micrometers, and the diameter of the weft yarn 4 is 20 micrometers; the number of the warp yarns 3 is 65, the number of the weft yarns 4 is 60, the number of the warp yarns 3 per square inch of the graphite cloth 2 is 190, and the number of the weft yarns 4 per square inch of the graphite cloth 2 is 100. The width of the graphite cloth 2 is 250 cm.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. Resistant air current erosion room of mould steel vacuum heating, its characterized in that includes the vacuum furnace that is formed by graphite cake (1) concatenation or integrated into one piece, graphite cloth (2) have been laid to the vacuum furnace inner wall, graphite cloth (2) are woven by warp (3) and woof (4) are crisscross to form, warp (3) with the composition of woof (4) is graphite, there are 8 tie points so that graphite cloth (2) are connected with the laminating of vacuum furnace inner wall between graphite cloth (2) and the vacuum furnace inner wall at least.
2. The die steel vacuum heating gas flow erosion resistant chamber of claim 1, wherein at least one connecting line exists between the graphite cloth (2) and the inner wall of the vacuum furnace.
3. The die steel vacuum heating air flow erosion resistant chamber of claim 1, wherein the warp yarns (3) and the weft yarns (4) are interwoven perpendicular to each other.
4. The die steel vacuum heating air flow erosion resisting chamber of claim 3, wherein the warp yarns (3) and the weft yarns (4) are interwoven once every 3-6 times.
5. The die steel vacuum heating air flow erosion resisting chamber according to claim 3, wherein the diameter of the warp yarns (3) is 10-100 μm, and the diameter of the weft yarns (4) is 10-100 μm.
6. The die steel vacuum heating air flow erosion resisting chamber as claimed in claim 3, wherein the number of the warp yarns (3) of the graphite cloth (2) arranged per square inch is 20-250, and the number of the weft yarns (4) of the graphite cloth (2) arranged per square inch is 10-150.
7. The die steel vacuum heating air flow erosion resisting chamber according to claim 3, wherein 35-65 warps (3) are arranged, and 20-60 wefts (4) are arranged.
8. The die steel vacuum heating air flow erosion resistant chamber as claimed in claim 3, wherein the width of the graphite cloth (2) is 50-250 cm.
9. The die steel vacuum heating air flow erosion resisting chamber as claimed in claim 3, wherein the number of the warp yarns (3) arranged in the graphite cloth (2) per square inch is 150-220, and the number of the weft yarns (4) arranged in the graphite cloth (2) per square inch is 90-110.
10. The die steel vacuum heating air flow erosion resisting chamber as claimed in claim 3, wherein the number of the warp yarns (3) arranged per square inch of the graphite cloth (2) is 190-200, and the number of the weft yarns (4) arranged per square inch of the graphite cloth (2) is 100-105.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921689048.2U CN210974799U (en) | 2019-10-10 | 2019-10-10 | Die steel vacuum heating air flow erosion resistant chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921689048.2U CN210974799U (en) | 2019-10-10 | 2019-10-10 | Die steel vacuum heating air flow erosion resistant chamber |
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| Publication Number | Publication Date |
|---|---|
| CN210974799U true CN210974799U (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921689048.2U Active CN210974799U (en) | 2019-10-10 | 2019-10-10 | Die steel vacuum heating air flow erosion resistant chamber |
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| CN (1) | CN210974799U (en) |
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