WO2010004848A1

WO2010004848A1 - Intermediate stoke, method for producing the same and low pressure casting device

Info

Publication number: WO2010004848A1
Application number: PCT/JP2009/061155
Authority: WO
Inventors: 中間茂; 木原規浩; 深瀬宗彦; 伊藤義幸; 井手裕貴; 藤田康平
Original assignee: ニチアス株式会社; トヨタ自動車株式会社
Priority date: 2008-07-11
Filing date: 2009-06-12
Publication date: 2010-01-14
Also published as: US20100326617A1; CN101801563A; CN101801563B; EP2181784A4; EP2181784A1; JP2010017743A; JP5255934B2

Abstract

An intermediate stalk (10) for use in a low pressure casting device has a metallic sheath (2) and a precast refractory (1) which is fitted to the inside of the metallic sheath (2) removably therefrom, wherein a gap (3) for releasing air is provided between the sheath (2) and the precast refractory (1) in the plan view. The intermediate stalk enables water to be drained well from a refractory insulating material at the time of heating with no risk of burst, eliminates cracking of the refractory insulating material due to difference in coefficient of thermal expansion between the refractory insulating material and the metallic sheath, and facilitates replacement of the refractory insulating material. Also provided are a method for producing the intermediate stalk and a low pressure casting device.

Description

Stock, its manufacturing method and technical field

This book relates to the low-pressure equipment used for the construction of Aum and its manufacturing method.

As shown in Fig. 6, the low pressure used for the construction of Aum is 00, which is sent by sending Aum 02 through Suk 04 Stock 03 to Mold 5.

The intermediate stock 03 used for 0 is 6 0 700.

In recent years, the metal side has been replaced by the demands of being resistant to C and eliminating the need for an external stem.

The one lit in 3 is known.

2006 2 244 8 In the report, the metal 3 side was ignited with 23 and the outer skin 3

The intermediate stock 03 with the structure of sandwiching the mineral 3 that adjusts the mutual expansion between the two and the low pressure provided with this

0 is disclosed. This stock 03

According to 00, the heat from the intermediate stock 3 is suppressed, and the decrease is prevented. 3 The inorganic material 33 that adjusts the mutual expansion is sandwiched between the refractory 23, so that the 23 cracks due to the thermal expansion are sandwiched. Heating that can be prevented by heat By using the tonicity to the inorganic material 3, it is possible to close the gap that may occur between the outer skin 3 and the fire resistance 23 due to thermal expansion, and to prevent the heat-insulating effect from being produced. Mysterious

Issues that Ming tries to solve

However, since the low pressure 00 equipped with the stock 03 and the low-pressure 00 is broken by the outer skin 3, the heat of 2 3 is injured, and the 3 is damaged by tension. There is a fear. In addition, the inorganic material 3 that adjusts the mutual expansion is sandwiched between the materials, but the inorganic material 3 does not have sufficient ability to absorb the expansion of metal 23 due to heat during use. May cause cracks. In addition, when the 3 is destroyed due to re-stretching, an excessive force is applied to the metal 3, which may cause the outer skin 3 to form. In addition, the inorganic (3) () used only for the inorganic 33 is decomposed and smoked or smelled for the first time in production.

In addition, there are two types of moisture contained in the atmosphere, which is absorbed by storage and storage of compounded water used during lining in the manufacturing process.

In addition, there is no problem of clear, heated fire material injuries, explosion cracks, fire material metal expansion, fire material cracks, intermediate fires that can be easily replaced. Is to provide a device. Steps to solve the problem

In the actual situation, as a result of debating, in the intermediate stove, insert the fire material on the metal side and remove the air between the push fire materials in the plane. If there is a problem, it is found that there is no problem of heating fire material, explosion explosion, fire material cracking due to expansion of fire material and metal, easy replacement of fire material, etc. Has been completed.

In other words, it is an intermediate squeeze used for a low-pressure device, and has a metal fired material that is inserted into the metal side of the metal, and between the fired fire material in a plane. It provides an intermediate stock characterized by the provision of air vents.

Further, the present invention provides a low-pressure apparatus characterized by comprising the above-mentioned stock.

In addition, cast metal fired in the shape of a metal cast on the side of the metal that has been pre-shaped so that air can escape between the cast fire material on a flat surface. It provides a method for producing intermediate stocks used in low-pressure devices, which are characterized by being built in. Mysterious

According to the light skating, the cast fire material is put on and removed from the metal side and placed on a flat surface. Since there is a vent between the cast fire material and the fire material, the fire material may not be punctured, the explosion will not explode, or the fire material and metal will expand. Easy to change. In addition, there is no replacement of the fire material in the maintenance, so there is no damage to the metal due to the replacement. In addition, according to the apparent stock manufacturing method, the push fire material is not manufactured as a metal product, so the manufacturing site and location can be determined conveniently. Will increase. In addition, the intermediate stock can be manufactured by simply putting the fire material into the metal, thus reducing the manufacturing cost. A simple description of the surface

The figure is a side view of the stock of this implementation, Figure 2 is a side view of the intermediate stock of the figure, and Figure 3 is an example of how to set the fired fire material in the intermediate stock () Is a side view of another form of the part surrounded by 2 in Fig. 2, () is a side view of (), (C is a side view of a part fixed by a plate, () Fig. 4 is a plan view of (C), Fig. 4 is a diagram for explaining the method of making a bright stock, Fig. 5 is a schematic diagram of the bright stand, and Fig. 6 is a diagram of the future It is a schematic diagram.

The intermediate stock in the embodiment of the present invention and the low pressure apparatus provided with this will be described with reference to FIG. Fig. 2 is a plan view of the book, Fig. 2 is a plan view of the intermediate stock in Fig. 3, Fig. 3 is a diagram showing an example of a method for determining the fire material in the intermediate stock, () Is a side view of the part surrounded by 2 in Fig. 2, (B) is a side view of (), (C) is a side view of the part fixed by a plate, () is a side view of () Fig. 4 is a diagram for explaining the manufacturing method of the present invention, and Fig. 5 is a schematic diagram of a low-pressure apparatus.

Skunk 0 is used for low pressure equipment. The skirt 0 has an upper portion 2 7 having a large opening diameter 27 and a lower portion 28 having a small opening diameter and a holding metal 2 having a relatively deep depth, and the outer skin 2 on the metal 2 side. It has a two-cased outer casing. The new stock was made of metal because the metal side was ligated with fire material. For this reason, there are restrictions on the manufacturing conditions, but since the stock is not manufactured as a metal product, the manufacturing method and equipment can be determined conveniently, and production will increase. In addition, since there is no change in the fire material in the maintenance, there will be no scratches on the metal due to the replacement.

There is no particular restriction on the genus 2 and, like the conventional one, cast iron can be mentioned. It is preferable to have a flat 2 that supports the cast fire material at the mouth of the genus 2, although there is no particular limitation, and it is the same as the conventional one. By providing a flat 2 at the mouth, the qualitative properties of a fire-resistant material with a flat surface are improved.

In the light stock 0, the purest material is put against the outer skin 2 on the metal 2 side. Pushed Fire Material 3 is formed between the outer skin 2 and the fired fire material 3 on the metal 2 plane. If so, it may be in a state. The stock has a structure that supports the push fire material. In other words, the flat side of the firewood

Is formed on the metal 2 2 through the Tsuki 4 of the push fire material

This is the structure installed. For example, ceramics 20 to 40 can be used to prevent the stick 2 from being inserted through the gap between the two metal holders made of metal by using the stick 4 between the two holding parts (). , Materials containing 40 to 70 kyrite and 5 to 20 organic idder. The thermal expansivity is preferably 500 to 80 3, particularly 60 to 700 c 3.

The shape of the side of the cast fire material supported by the side of the metal (2) in the above-mentioned state, for example, made of metal

The half of the side surface of 2 may support half of the side of the cast fire material. Since there is such an inner periphery and outer periphery, the air escapes to the upper part, so it does not hinder the heating material.

The light stock 0 is the one in which the air escapes 3 between the outer skin 2 on the plane and the fire material on the plane.

As shown in Fig. 2, in the state where the intermediate stock 0 is viewed from the top, 3 is observed between 2 metal fireworks. By providing 3 between the outer shell 2 and the fired fire material 3 in which the air escapes, Injury, no explosion, no material cracking due to expansion of firewood and metal, easy replacement of firewood.

In stock 0, 3 is 0 · 5, preferably • ··, especially 2 · 0. The value of 3 is not particularly limited, but if it is too large, it is 5 because the qualitativeness of the push-fired material will be reduced. In addition, the gap 3 between the outer shell 2 and the dust fire material on the plane may be a part in the circumference, or may be entirely formed between the two metal fire materials. . This is made of a metal between two cast fire materials, and is preferred in terms of design and qualitativeness of the cast fire materials.

As shown in the figure, the gap 3 between the two metal firearms is 25 on the metal 2 side.

The internal 3a formed between 5 on the side of the fired material may be continuous. In addition, in the case of the structure that supports the half of the side of the positive fire material, for example, with the half of the side of the metal 2 described above, the gap 3 between the two metal fire materials is above the side of the metal 2 Half Yasu Consecutive made of the upper half of the side of the firewood. You can use the following materials for the cast fire material. In addition, an irregular shaped fire can be applied to the cast fire. As the fixed-form firewood, the main thing is the umbilical material, which is obtained by adding anesame and water to this, and the main one is the inorganic ana-based powder, which improves the squid, bo and carbonization. Stoids obtained by adding powder, mosquito- or ana-free solid materials and water, etc. Is mentioned.

The light skirt 0 may be insulated against the cast fire material. By forming a heat insulation in the cast fire material, it is possible to improve the thermal performance of the intermediate stock, and to avoid problems due to a decrease in the temperature. In addition, it functions as a stop to prevent metal from being removed due to scraping of the fire material. Examples of such materials include inorganic composites such as inorganic fiber brackets, and examples of inorganic materials include ceramics, deer fibers and anal fibers. Even if the intermediate stock has heat insulation formed on the cast fire material, there is a metal 3 on the plane where the heat insulation is formed. The inner side 3a may be formed between the side surfaces of the 2-5 parts of the fired firewood.

In addition, the light stock 0 has a structure in which a portion between two metal fire materials, particularly the lower half, is flexible and has a heat expansion property that is stretched by heating. Anyway. This improves the qualitativeness of the cast fire material. The thermal expansibility is, for example, 300-.

The tension starts at 400 C and expands in the thickness direction. It is 2 or more, preferably 2 to 4 times the thickness direction. If it is in the vicinity, it is possible to prevent the metal 2-fired firewood in the part where the heat-expandable shell is interposed, and to achieve the installation qualitative heat insulation effect. Reference numeral 5 denotes a holding part of 2 made by the genus.

In light school 0, on the metal side 2 You may use a push plate to place two pairs on the 4 diagonals of the 4 corners of the Dasuto firewood. This stabilizes the setting of the push fire material. The plate-based method will be described with reference to Fig. 3. The shape of the sk end person as viewed from above is a square shape, and a notch 6 is formed in the depth direction by a predetermined method. The notch portion 6 is made up of a metal notch portion 6 and a cast fire material notch portion 62. A boss 7 is formed in the notch 2 of the genus 2 (3 (). 8 of the shape to be inserted into the notch 6 is prepared. (3 (). Then, if 8 is inserted into the cut-out portion 6 and bent, the bottom surface is soft, and the action of the stick 4 is flexible. Yust firewood is reinforced to metal 2 (3 (C) ()

Next, I will explain how to make a clear stock. The light stock 0 was put in the metal 2 side, and it was predicted to have a shape that would allow the air 3 to be removed between the metal 2 fire material in the plane. It is made by casting the cast firewood into the metal 2 side.

The PUUS fire material is produced from the irregular-shaped fire material described in the above-mentioned SK0. The cast fire material is made of metal

Since it is not manufactured in accordance with 2, the manufacturing method and equipment can be determined as convenient, which increases manufacturing. In addition, when two conventional refractory materials made of metal are integrated with the conventional sk, the degree of the heat is increased, and the degree of metal 2 is transformed or deformed, so it was necessary to limit the degree. In this case, real Occasionally, refractory material was sprinkled and heat shrinkage occurred, possibly resulting in damage. However, since it is not manufactured by using metal 2 with a clear stock 0, it is possible to make the push fire material at a high temperature. For this reason, there is no generation of fire material or heat shrinkage during use. In addition, since the intermediate stock 0 can be manufactured by simply inserting it into the 2 made of the Yasu fire metal, the manufacturing cost can be reduced.

If Stock 0 is equipped with Stick 4, insert Stick 4 into a fixed position around the mouth on the face of Intermediate Stock 0 before inserting the cast fire material (4 See). As a result, the intermediate stock 0 can be manufactured by a simple method.

M20 is equipped with an intermediate sk 0. That is, as shown in Fig. 5, the metal 20 is filled with the metal 32 (acupuncture point) 3 and the lower mouth part faces the metal 32 through 36 and 36 of 36 which seal the vessel. 34, the middle stock 0 installed in the direction of the stock 34 so that the mouth of the stock 34 is connected, and the mold 3 5 installed in the direction of the intermediate stock 0 Is provided.

In 20 of the light, the gold 32 in 3 is put into a state by the shining heating stage. In addition, the force of the metal 32 is applied by the insidious means of the metal 32, and the metal 32 is pushed up toward the die 35 through the stock 34 and the stalk 0 by this force action. In addition, there is a vent hole in the mold 35 so that the air can be removed from there. 0 The mold corresponding to the product to be cast is placed in 35, and the pushed-up metal 32 flows into this. Then, if the mold is cooled at an appropriate timing, aum, etc. can be obtained. Here, the construction of a low-pressure device that pushes up the metal and supplies it to the mold is shown, but the structure in which the inside of the mold 35 is depressurized and sucked up for that purpose or the inside of the mold 35 is depressurized. There is also a structure that pushes up the lever.

According to No.20, air is provided between the cast fire materials in the plane, so that the heated fire material is not injured, the explosion does not explode, and the fire material is expanded by the expansion of the fire material and the metal. There is no subject of cracks, and it is easy to change the firewood. Also, since there is no fire material change in the maintenance, there will be no scratches on the metal during the replacement.

The explanation will be made more concretely by giving an example, but this is only an example and does not limit the explanation.

Mainly the moss (of the fire-fired firewood), an appropriate amount of water was added to the indeterminate form to which the anaceme was bound, and the powder was made. In the predetermined shape.

However, it is the same at the boundary of 25 C and 80 R.

I made it live day and night. And 60 after curing at 0 C after curing.

The cast fire material as shown in Fig. 2 and Fig. 2 was manufactured at 0 C.

(Stock made) A ceramic tote (kick) containing a drill made of iron with the same shape of the hole as shown in Fig. 2 and Fig. 2 was placed. Made of the above method on the side of the iron where the wood is placed

An intermediate skate was manufactured by installing fire material and attaching press plates to the upper two corners at the top. This skating was made of 3 · 0 as the outer shell fired material in the plane.

A ceramic material containing kirite was attached to the surface of the iron plate shown in the figure and figure 2 with an organic material. Thus, a child for forming the surface part of the intermediate stock (side rig) was placed in this part. so, .

Implementation The used motor was injected between the core and the core, and was grown overnight at 25 C, 80 ° C. Then, after removing the core, this was 24 at 0C. This stock was not present in the outer skin lining. ()

Assuming the situation, the intermediate stock was heated until the ambient temperature reached 900 ° C. using a snare, and white smoke was generated due to comparative organics. In addition, when the state of the heated material was confirmed, it was assumed that it was due to thermal expansion, and it was confirmed that the material was dropped due to explosion. On the other hand, when the above evaluation was carried out, the heating abnormality was not confirmed during heating.

issue Purest fire material

2 genera

3 Distract

4

5 holding parts

0, 03 Sk

20, 00

3 (point)

32

34 Sk

35

3 6 above availability

According to Akira's stock, there is no subject of heated fire material injuries, explosion rupture, and fire material cracking due to expansion of fire material and metal, so it is suitable for the construction of Aum. In addition, according to the apparent stock manufacturing method, the fire and firewood are not made of metal, so the location and location can be determined conveniently, which increases production. .

Claims

Intermediate stock used in the installation of metal, having a metal fired material on the side of the metal, and between the metal fired fire material in a plane In addition, an intermediate skirt characterized by the provision of air vents.

The stock described above, characterized in that the gap above 2 ・ 0 ・ 5 is made of cast firewood.

3. Precast A material that has heat insulation formed on a fire material or 2 stocks.

4. The stock described in any one of items 3 to 3 above, which indicates that a stick material that prevents metal from entering between the fire material is placed around the mouth of the stock surface. .

A low pressure characterized by having the skew according to any one of 5-4.

6 ・ On a flat surface

An intermediate slab used for low-pressure installations, which is made by inserting a fired fired material in the shape of a metal to the side of the metal. Made of ku.