JPH0523169B2 - - Google Patents
Info
- Publication number
- JPH0523169B2 JPH0523169B2 JP60252674A JP25267485A JPH0523169B2 JP H0523169 B2 JPH0523169 B2 JP H0523169B2 JP 60252674 A JP60252674 A JP 60252674A JP 25267485 A JP25267485 A JP 25267485A JP H0523169 B2 JPH0523169 B2 JP H0523169B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- metal body
- heating
- resin molding
- induction heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 claims description 51
- 239000002184 metal Substances 0.000 claims description 39
- 229910052751 metal Inorganic materials 0.000 claims description 39
- 239000011347 resin Substances 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 25
- 230000006698 induction Effects 0.000 claims description 24
- 238000000465 moulding Methods 0.000 claims description 19
- 239000000843 powder Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 238000005219 brazing Methods 0.000 claims description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 238000001816 cooling Methods 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/18—Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/06—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using radiation, e.g. electro-magnetic waves, induction heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/46—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0811—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using induction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1658—Cooling using gas
- B29C2035/1666—Cooling using gas dried air
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は粉末樹脂成形に用いる装置に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an apparatus used for powder resin molding.
現在、自動車部品に使用しているインストルメ
ントパネルの製造方法として、粉末樹脂成形法が
知られている。この粉末樹脂成形では、外面に熱
媒配管が溶接された厚さ3.5mm程度のニツケル製
の金型が使用され、この熱媒配管内に高温の油を
流すことにより、金型を220℃程度に加熱し、そ
の内面に塩ビ系樹脂粉末（例えば、ポリビニール
クロライド）を振りかけ、金型内面に接触した粉
末を溶融させ、その後金型を冷却することにより
樹脂を硬化させ、成形を行つている。ここで金型
材料としてニツケルが使用されているのは、錆び
ない、成形品の脱型性が良い、細かい模様が消え
ない等の利点があるためである。
Powder resin molding is currently known as a method for manufacturing instrument panels used in automobile parts. In this powder resin molding, a nickel mold with a thickness of about 3.5 mm is used, with a heating medium pipe welded to its outer surface. PVC resin powder (e.g., polyvinyl chloride) is sprinkled on the inner surface of the mold, melting the powder that comes into contact with the inner surface of the mold, and then cooling the mold to harden the resin and perform molding. . The reason why nickel is used as the mold material here is that it has advantages such as not rusting, good demoldability of molded products, and fine patterns that do not disappear.
ところが、かかる従来の金型では、金型を構成
するニツケルの熱伝導率が低いため、温度分布が
不均一になり、例えば熱媒配管に接触している部
分は高温に加熱されるが、配管と配管との間の部
分の温度が低くなり、この為成形品の厚みむらが
生じ易いという問題点があつた。また、金型の伝
熱能力が低いため、加熱、冷却時間が長くかか
り、生産性が悪く、更に、複雑な形状の成形品を
作る場合には、加熱装置の取付が困難であり、一
層温度分布が不均一となり、製品の品質が悪くな
る等の問題点もあつた。
However, in such conventional molds, the thermal conductivity of the nickel that makes up the mold is low, so the temperature distribution is uneven. For example, the part that is in contact with the heat transfer pipe is heated to a high temperature, There was a problem in that the temperature in the area between the molded product and the piping was low, and as a result, the thickness of the molded product was likely to be uneven. In addition, since the heat transfer capacity of the mold is low, it takes a long time to heat and cool down, resulting in poor productivity.Furthermore, when making molded products with complex shapes, it is difficult to install a heating device, which increases the temperature even further. There were also problems such as uneven distribution and poor product quality.
本発明はかかる従来の問題点に鑑みて為された
もので、金型の温度むらを減少させ、且つ加熱及
び冷却を敏速に行い得る粉末樹脂成形装置を提供
することを目的とする。 The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a powder resin molding apparatus that can reduce temperature unevenness in a mold and can quickly perform heating and cooling.
本発明は、上記問題点を解決するため、金型の
内面即ち、粉末樹脂に接触して溶融する溶融面即
ち成形面を形成するニツケル等の熱伝導率の小さ
い金属体に対し、その外側に熱伝導の良い金属
体、例えば銅を、溶射、メツキ、ライニング、ロ
ー付け等で接合して設け、更に、その金型を加熱
する手段として、金型の外面側に誘導加熱コイル
を配置するという構成を備えたものである。
In order to solve the above-mentioned problems, the present invention has been developed to provide a metal body with low thermal conductivity such as nickel that forms the inner surface of the mold, that is, the melting surface that melts the powdered resin, that is, the molding surface. A metal body with good thermal conductivity, such as copper, is bonded by thermal spraying, plating, lining, brazing, etc., and an induction heating coil is placed on the outside of the mold as a means of heating the mold. It has a configuration.
本発明では、上述のように熱伝導の悪い金属に
熱伝導の良い金属を接合したので、全体としての
熱伝導が向上し、均等で安定した温度分布が得ら
れると共に、敏速な加熱、冷却が可能となり、ま
た、誘導加熱コイルによる加熱を採用したので、
極めて敏速な且つ一様な加熱が可能となる。金型
の形状によつては加熱しにくい部分が生じ、温度
の不均一が生じやすいが、加熱しにくい部分で
は、熱伝導の良い金属体の厚みや材質を変化させ
ることにより、一層均一な加熱を行うことがで
き、また、誘導加熱コイルと金型外面との距離の
調整、或いは誘導加熱コイルの巻線間隔の調整に
よつても金型の一層均一な加熱を行うことができ
る。更に、金型の加熱しにくい部分或いは大熱量
を必要とする部分には、強磁性の金属片或いは固
体を接合して、発熱量を増し、均一な加熱を図る
こともできる。
In the present invention, as mentioned above, since a metal with good thermal conductivity is bonded to a metal with poor thermal conductivity, overall heat conduction is improved, an even and stable temperature distribution is obtained, and rapid heating and cooling are achieved. This has become possible, and since we have adopted heating using an induction heating coil,
Extremely rapid and uniform heating is possible. Depending on the shape of the mold, there may be areas that are difficult to heat, which can lead to uneven temperature. However, in areas that are difficult to heat, by changing the thickness and material of the metal body, which has good heat conductivity, it is possible to make the heating more uniform. Furthermore, the mold can be heated more uniformly by adjusting the distance between the induction heating coil and the outer surface of the mold, or by adjusting the winding interval of the induction heating coil. Furthermore, ferromagnetic metal pieces or solids can be bonded to parts of the mold that are difficult to heat or that require a large amount of heat to increase the amount of heat generated and to achieve uniform heating.
以下、図面に示す本発明の実施例を説明する。 Embodiments of the present invention shown in the drawings will be described below.
第１図は本発明の一実施例の断面図、第２図は
全体の概略斜視図である。本発明になる粉末樹脂
成形装置は、粉末樹脂に接触して加熱溶融させる
金型１と、この金型１の反対側に設けられ、金型
１を加熱する誘導加熱コイル２とを有する。金型
１は少なくとも粉末樹脂に接触して溶融させる溶
融面３Ａを形成する第一金属体３と、その外面に
接合して設けられる第二金属体４とからなる。第
一金属体３は前記したように、粉末樹脂を溶融す
る溶融面即ち成形面を形成するものであるので、
耐食性、耐摩耗性、成形品の脱型性等に優れてい
ることが望ましく、これらの点からニツケルが好
適である。一方、第二金属体４は、第一金属体３
のみでは大きい温度分布が生じるので、これを防
ぐために設けており、極力熱伝導率の大きい金
属、例えば銅が好適である。第二金属体４の形成
は、メツキ、溶射、ライニング、ロー付け等で可
能であるが、この他にも、あらかじめ第二金属体
４を別型として作つておき、これを第一金属体３
に接合させる方法でもよい。この場合、第一金属
体３と第二金属体４との間に、ロー材を注入し、
両者間の確実な伝熱を図ることが好ましい。な
お、第二金属体４の厚みは、金型全体に渡つて一
定とする必要はなく、かつ加熱しにくい部分或い
は大熱量を必要とする部分（例えば、突出部３
ａ）には、強磁性体を貼りつけてもよい。また、
熱伝導率の更に良い材質を部分的に使用する場合
もある。 FIG. 1 is a sectional view of one embodiment of the present invention, and FIG. 2 is a schematic perspective view of the entire device. The powder resin molding apparatus according to the present invention includes a mold 1 that contacts powder resin and heats it to melt it, and an induction heating coil 2 that is provided on the opposite side of the mold 1 and heats the mold 1. The mold 1 includes at least a first metal body 3 forming a melting surface 3A that contacts and melts powdered resin, and a second metal body 4 bonded to the outer surface of the first metal body 3. As mentioned above, the first metal body 3 forms a melting surface for melting the powdered resin, that is, a molding surface.
It is desirable that the material be excellent in corrosion resistance, abrasion resistance, demoldability of molded products, etc., and nickel is preferred from these points of view. On the other hand, the second metal body 4 is
Since a large temperature distribution occurs when using only a single layer, it is provided to prevent this, and a metal with as high thermal conductivity as possible, such as copper, is suitable. The second metal body 4 can be formed by plating, thermal spraying, lining, brazing, etc., but there are also other methods such as making the second metal body 4 as a separate mold in advance and attaching it to the first metal body 4.
It may also be a method of joining. In this case, a brazing material is injected between the first metal body 3 and the second metal body 4,
It is preferable to ensure reliable heat transfer between the two. It should be noted that the thickness of the second metal body 4 does not need to be constant over the entire mold, and the thickness of the second metal body 4 does not need to be constant over the entire mold, and the thickness of the second metal body 4 does not need to be constant over the entire mold.
A ferromagnetic material may be attached to a). Also,
In some cases, materials with better thermal conductivity are partially used.
金型１の外面側に配置される誘導加熱コイル２
は、金型１の所望の位置を誘導加熱するように配
置される。このコイル２は金型とのクリアランス
により、或いは、巻線相互の間隔により、発生熱
量が変化するので、このクリアランス及び巻線間
隔は、金型１に生じる温度差が許容範囲内になる
ように、設定される。即ち、必要とされる加熱熱
量が大きい場所では、クリアランスを小さく、或
いは巻線間隔を小さくし、その他の場所ではその
逆にすることにより、温度の均一化が図れる。な
お、金型外面の必要部分に強磁性の金属片又は固
体を接合して設けることにより、誘導電流による
発熱量を増加させて、温度の均一化を図ることも
可能である。誘導加熱コイル２は電源５に接続さ
れている。 Induction heating coil 2 placed on the outer surface of the mold 1
are arranged so as to inductively heat a desired position of the mold 1. The amount of heat generated by the coil 2 changes depending on the clearance with the mold or the distance between the windings, so the clearance and the distance between the windings are set so that the temperature difference that occurs in the mold 1 is within an allowable range. , is set. That is, in places where a large amount of heating heat is required, the clearance or the winding interval is made small, and in other places, the temperature can be made uniform by making the clearance smaller or the winding spacing smaller. Note that by bonding and providing a ferromagnetic metal piece or solid to a necessary portion of the outer surface of the mold, it is also possible to increase the amount of heat generated by the induced current and to equalize the temperature. The induction heating coil 2 is connected to a power source 5.
上記構造の粉末樹脂成形装置では、誘導加熱コ
イル２により金型１が誘導加熱され、所定温度に
上昇すると、その内面３Ａに樹脂粉末が振りかけ
られ、その粉末樹脂は内面３Ａで溶融される。そ
の後、金型１を水スプレーによる水冷或いは空気
吹付けによる空冷等により冷却すると、溶融樹脂
が硬化し、その後脱型することにより、成形品が
製造される。 In the powder resin molding apparatus having the above structure, the mold 1 is induction heated by the induction heating coil 2, and when the temperature rises to a predetermined temperature, resin powder is sprinkled on the inner surface 3A, and the powdered resin is melted on the inner surface 3A. Thereafter, when the mold 1 is cooled by water cooling by water spray or air cooling by air blowing, the molten resin is hardened, and then the mold is demolded to produce a molded product.
ところで、誘導加熱により金型加熱を行う場
合、金型の熱伝導率が小さいと、均一な加熱が困
難であり、均一に加熱するための、誘導加熱コイ
ルの設計（金型に対するクリアランス、巻線相互
の間隔等）が困難である。第３図は本発明者が金
型１の材質と誘導加熱コイル２の配置とによる金
型の温度分布を測定した結果を示す図である。第
３図において、金型１は第１図のものと同一形状
をしており、材質として(a)ステンレス、(b)銅、(c)
ステンレスと銅の複合材のものを用意し、誘導加
熱コイル２は図に示すように上になるに従い金型
からのクリアランス及び巻線間隔を大きくしてい
る。この金型及びコイルによる昇温テストを行つ
たところ、第３図にａ，ｂ，ｃで示す温度曲線を
得た。曲線ａはステンレスの金型、曲線ｂは銅の
金型、曲線ｃはステンレスと銅の複合材の金型を
示している。この実験結果から明らかなように、
ステンレスのように金型の熱伝導率が小さいと、
金型温度が不均一になり、従つてこれを均一にす
るには、誘導加熱コイルを正確に設計しなければ
ならないが、熱伝導率の小さいステンレスに対し
て熱伝導の良い材質を接合することにより、金型
温度の不均一さが改良されている。このため、誘
導加熱コイルの設計が容易となり、比較的簡単な
構造の誘導加熱コイルで均一な加熱が可能とな
る。 By the way, when heating a mold by induction heating, if the thermal conductivity of the mold is low, uniform heating is difficult. mutual spacing, etc.) is difficult. FIG. 3 is a diagram showing the results of measurements made by the inventor of the temperature distribution of the mold depending on the material of the mold 1 and the arrangement of the induction heating coil 2. In Figure 3, the mold 1 has the same shape as the one in Figure 1, and is made of (a) stainless steel, (b) copper, (c)
A composite material of stainless steel and copper is prepared, and the clearance from the mold and the distance between the windings of the induction heating coil 2 are increased as they go up as shown in the figure. When a temperature increase test was conducted using this mold and coil, temperature curves shown as a, b, and c in FIG. 3 were obtained. Curve a shows a mold made of stainless steel, curve b shows a mold made of copper, and curve c shows a mold made of a composite material of stainless steel and copper. As is clear from the results of this experiment,
If the thermal conductivity of the mold is low, such as stainless steel,
The mold temperature is uneven, so to make it uniform, the induction heating coil must be designed accurately, but it is necessary to join a material with good thermal conductivity to stainless steel, which has low thermal conductivity. This improves the non-uniformity of mold temperature. Therefore, the design of the induction heating coil becomes easy, and uniform heating is possible with an induction heating coil having a relatively simple structure.
また、金型の利用に誘導加熱を利用したことに
より、通常の熱媒による加熱に比べ、昇温、冷却
時間を短縮できる利点が得られる。即ち、熱媒加
熱による場合には、熱媒の加熱温度に限界が有る
ため、昇温時間を十分には短縮できないが、誘導
加熱では出力調整により急速な昇温が可能であ
り、また冷却の場合にも、熱媒使用の場合には油
入替に時間を要するきらいがあるが、誘導加熱の
場合には単に水をスプレーすることにより敏速に
冷却でき、冷却速度を短縮できる。 Furthermore, by using induction heating for the mold, there is an advantage that the heating and cooling times can be shortened compared to heating using a normal heating medium. In other words, in the case of heat medium heating, there is a limit to the heating temperature of the heat medium, so the temperature rise time cannot be shortened sufficiently, but with induction heating, rapid temperature rise is possible by adjusting the output, and cooling In the case of using a heating medium, it tends to take time to replace the oil, but in the case of induction heating, cooling can be done quickly by simply spraying water, and the cooling rate can be shortened.
以上のように、本発明は粉末樹脂の成形に用い
る金型を、樹脂成形に必要な特性の成形面を提供
する第一金属体と、その外面に設けられる熱伝導
の良い第二金属体とで構成し、しかも、その加熱
に誘導加熱コイルを用いたので、金型に必要な脱
型性、耐食性、耐摩耗性等を犠牲にすることな
く、全体としての熱伝導率を大きくすることがで
き、均一な加熱が可能となり品質が向上するばか
りでなく、加熱、冷却に必要な時間を短縮でき生
産性を向上させることができるという効果を有し
ている。更に、本発明の装置は、単に粉末樹脂の
溶融成形のみならず、他の金属、非金属材料等の
加熱成形にも応用できるものである。
As described above, the present invention provides a mold used for molding powdered resin, which includes a first metal body that provides a molding surface with characteristics necessary for resin molding, and a second metal body that is provided on the outer surface and has good thermal conductivity. Moreover, since an induction heating coil is used for heating, the overall thermal conductivity can be increased without sacrificing the demoldability, corrosion resistance, abrasion resistance, etc. required for the mold. This not only enables uniform heating and improves quality, but also has the effect of shortening the time required for heating and cooling and improving productivity. Furthermore, the apparatus of the present invention can be applied not only to melt molding of powdered resin, but also to heat molding of other metals, nonmetallic materials, and the like.
第１図は本発明の一実施例の断面図、第２図は
その実施例の全体を概略的に示す斜視図、第３図
は種々な材質の金型による昇温テスト結果を示す
図である。
１…金型、２…誘導加熱コイル、３…第一金属
体、３Ａ…溶融面、４…第二金属体。
Fig. 1 is a sectional view of an embodiment of the present invention, Fig. 2 is a perspective view schematically showing the entire embodiment, and Fig. 3 is a diagram showing the results of temperature rise tests using molds made of various materials. be. DESCRIPTION OF SYMBOLS 1... Mold, 2... Induction heating coil, 3... First metal body, 3A... Melting surface, 4... Second metal body.
Claims (1)
該金型を加熱する装置とからなり、前記金型が少
なくとも粉末樹脂に接触して溶融させる溶融面を
形成する第一金属体と、その外面に接合して設け
られた、前記第一金属体よりも熱伝導率の良い第
二金属体とを有しており、前記金型を加熱する装
置が、金型の外面に設けられた誘導加熱コイルよ
りなることを特徴とする粉末樹脂成形装置。 ２ 前記第一金属体と第二金属体とが、両者の間
にロー材を注入して接合されていることを特徴と
する特許請求の範囲第１項記載の粉末樹脂成形装
置。 ３ 前記第一金属体の加熱温度の調節のため、前
記第二金属体の厚み及び材質を場所的に異ならせ
ていることを特徴とする特許請求の範囲第１項又
は第２項記載の粉末樹脂成形装置。 ４ 前記第一金属体の加熱温度の調節のため、前
記誘導加熱コイルと金型との間隔を場所的に異な
らせていることを特徴とする特許請求の範囲第１
項から第３項のいずれか１項に記載の粉末樹脂成
形装置。 ５ 前記第一金属体の加熱温度の調節のため、前
記誘導加熱コイルの巻線間隔を場所的に異ならせ
ていることを特徴とする特許請求の範囲第１項か
ら第４項のいずれか１項に記載の粉末樹脂成形装
置。 ６ 前記第一金属体の加熱温度の調節のため、金
型外面の所要部分の加熱誘導コイル付近に、強磁
性の金属片又は固体を接合していることを特徴と
する特許請求の範囲第１項から第５項のいずれか
１項に記載の粉末樹脂成形装置。[Claims] 1. A mold that contacts powdered resin and melts it by heating;
a first metal body that forms a melting surface for the mold to contact and melt at least the powdered resin; and the first metal body that is connected to the outer surface of the first metal body. a second metal body having a higher thermal conductivity than the first metal body, and wherein the device for heating the mold comprises an induction heating coil provided on the outer surface of the mold. 2. The powder resin molding apparatus according to claim 1, wherein the first metal body and the second metal body are joined by injecting a brazing material between them. 3. The powder according to claim 1 or 2, wherein the thickness and material of the second metal body are varied depending on the location in order to adjust the heating temperature of the first metal body. Resin molding equipment. 4. Claim 1, characterized in that in order to adjust the heating temperature of the first metal body, the distance between the induction heating coil and the mold is varied depending on the location.
The powder resin molding apparatus according to any one of Items 1 to 3. 5. Any one of claims 1 to 4, characterized in that, in order to adjust the heating temperature of the first metal body, the winding spacing of the induction heating coil is varied depending on the location. Powder resin molding equipment described in 2. 6. Claim 1, characterized in that, in order to adjust the heating temperature of the first metal body, a ferromagnetic metal piece or solid is bonded to a required portion of the outer surface of the mold near the heating induction coil. 6. The powder resin molding apparatus according to any one of Items 5 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60252674A JPS62113521A (en) | 1985-11-13 | 1985-11-13 | Powder resin molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60252674A JPS62113521A (en) | 1985-11-13 | 1985-11-13 | Powder resin molding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62113521A JPS62113521A (en) | 1987-05-25 |
| JPH0523169B2 true JPH0523169B2 (en) | 1993-03-31 |
Family
ID=17240658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60252674A Granted JPS62113521A (en) | 1985-11-13 | 1985-11-13 | Powder resin molding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62113521A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0775848B2 (en) * | 1990-08-21 | 1995-08-16 | 旭化成工業株式会社 | Plastic mold |
| JP5443138B2 (en) * | 2009-11-24 | 2014-03-19 | 株式会社 サン・テクトロ | Apparatus and method for molding composite laminate material body |
| WO2011104442A1 (en) * | 2010-02-23 | 2011-09-01 | Arcelormittal Investigación Y Desarrollo Sl | Mold, method for making a mold and method for making a plastic-material or composite product using said mold |
| CN103764359B (en) * | 2011-06-28 | 2016-04-20 | 泰克瑞典公司 | For the apparatus and method heated mould or instrument |
| EP4302959A1 (en) * | 2022-07-07 | 2024-01-10 | Corebon AB | Molding tool, method of manufacturing the same and method of producing a composite part in said tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58164712U (en) * | 1982-04-27 | 1983-11-02 | 井上エムテ−ピ−株式会社 | Mold for molding synthetic resin products |
-
1985
- 1985-11-13 JP JP60252674A patent/JPS62113521A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62113521A (en) | 1987-05-25 |
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