JPH0155557B2 - - Google Patents
Info
- Publication number
- JPH0155557B2 JPH0155557B2 JP56087647A JP8764781A JPH0155557B2 JP H0155557 B2 JPH0155557 B2 JP H0155557B2 JP 56087647 A JP56087647 A JP 56087647A JP 8764781 A JP8764781 A JP 8764781A JP H0155557 B2 JPH0155557 B2 JP H0155557B2
- Authority
- JP
- Japan
- Prior art keywords
- base
- mold
- heat dissipation
- resin
- coating layer
- 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
Links
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- 230000017525 heat dissipation Effects 0.000 claims description 13
- 239000011247 coating layer Substances 0.000 claims description 12
- 238000004512 die casting Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Description
【発明の詳細な説明】
この発明はアイロンのベースや調理プレートの
ベースなどとして使用される電熱器具用放熱ベー
スの製造法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a heat dissipation base for an electric heating appliance, which is used as a base for an iron or a base for a cooking plate.
一般にこの種の放熱ベースは、まずアルミダイ
カストにより基体を成形し、この基体の表面を平
滑に切削し、こののち脱脂、サンドブラスト等に
よる粗面化処理、空焼きの工程を経てその表面に
フツ素等の樹脂をコーテングし、これを加熱焼成
して被覆層を形成し、この被覆層を放熱面として
使用するようにしている。フツ素等による被覆層
は、低摩擦性、非粘着性、耐熱性などの点に優れ
るから、この特性をアイロンや調理プレートの放
熱面に活用しているものである。 In general, this type of heat dissipation base is made by first molding the base by aluminum die-casting, cutting the surface of this base smooth, and then degreasing, roughening by sandblasting, etc., and dry-firing to coat the surface with fluorine. This is coated with a resin such as, and heated and baked to form a coating layer, and this coating layer is used as a heat dissipation surface. Coating layers made of fluorine or the like have excellent properties such as low friction, non-adhesiveness, and heat resistance, and these properties are utilized for heat dissipation surfaces of irons and cooking plates.
ところが良質の被覆層を得るためには、樹脂の
コーテングおよびその加熱焼成という工程を２回
以上繰返して行なわなくてはならないため作業の
能率性に劣る難点があつた。このようなことから
近時、樹脂の射出成形によつて基体の表面に被覆
層を形成することが試みられている。すなわち、
アルミダイカストで成形した基体を樹脂成形用の
金型内に組込み、この状態でその金型内に樹脂を
射出して基体の表面に被覆層を形成するのであ
る。この種の被覆層に用いる樹脂としては、フツ
素系、ポリフエニレンサルフアイド系、フエノー
ル系等の樹脂が主なものとなるが、これらを射出
する場合、金型の温度をフツ素系では150〜180
℃、ポリフエニレンサルフアイド系では130〜150
℃、フエノール系では180℃以上に保つことが必
要となる。したがつてその金型内に組込む基体も
その温度とほゞ同等の温度に保たなくてはならな
い。しかしながら現在試みられている製造工程に
おいては、ダイカスト成形機から取出した基体を
そのまゝ放置し、射出用金型内に組込む際にその
基体を射出樹脂に適応する温度にまで加熱してい
る。このためその加熱用の設備等が必要となつて
費用が嵩み、また製造の能率性に劣る難点があつ
た。 However, in order to obtain a high-quality coating layer, the steps of coating with resin and heating and baking the resin must be repeated two or more times, resulting in a disadvantage of poor work efficiency. For this reason, attempts have recently been made to form a coating layer on the surface of the substrate by injection molding of resin. That is,
A base body molded by aluminum die-casting is assembled into a mold for resin molding, and in this state, resin is injected into the mold to form a coating layer on the surface of the base body. The main resins used for this type of coating layer are fluorine-based, polyphenylene sulfide-based, and phenol-based resins. 150-180
°C, 130-150 for polyphenylene sulfide type
℃, and for phenol-based products, it is necessary to maintain the temperature at 180℃ or higher. Therefore, the temperature of the substrate to be assembled into the mold must be maintained at approximately the same temperature as that temperature. However, in the manufacturing process currently being attempted, the base body taken out from the die-casting machine is left as is, and when it is assembled into an injection mold, the base body is heated to a temperature suitable for the injection resin. For this reason, heating equipment and the like are required, which increases costs, and also has the drawback of poor manufacturing efficiency.
ところで、ダイカスト成形機から取出した直後
の基体は200℃程度の温度を有しているのが普通
であり、この発明はこの点に着目し、成形直後の
高温の基体をそのまゝ射出成形用の金型内に組込
んで樹脂射出成形を行うことにより、別途に基体
を加熱する必要がなく、安価でかつ能率的な製造
を達成することができるようにした電熱器具用放
熱ベースの製造法を提供しようとするものであ
る。 By the way, the substrate immediately after being taken out from a die-casting machine usually has a temperature of about 200°C, and this invention focuses on this point and uses the high-temperature substrate immediately after molding for injection molding. A method of manufacturing a heat dissipation base for electric heating appliances that eliminates the need to separately heat the base and achieves inexpensive and efficient manufacturing by incorporating it into a mold and performing resin injection molding. This is what we are trying to provide.
以下、この発明の一実施例について図面を参照
して説明する。図中はアイロン用の放熱ベースの
基体で、これは例えばアルミニウム合金を素材と
してダイカストにより成形されていて、２が基体
１内に鋳込まれたシーズヒータである。また、３
は射出成形用の金型で、これは上型４と下型５と
からなる。 An embodiment of the present invention will be described below with reference to the drawings. The figure shows a base body of a heat dissipation base for an iron, which is formed by die-casting from, for example, an aluminum alloy, and 2 is a sheathed heater cast into the base body 1. Also, 3
A mold for injection molding consists of an upper mold 4 and a lower mold 5.
しかして、ダイカストで成形した直後の高温の
基体１を金型３内に組込み、この状態でゲート６
を介して金型３内にフツ素等の樹脂を射出して基
体１の放熱用の表面にその樹脂による被覆層７を
形成する。なお、金型３は予めその樹脂に適応す
る温度に保温されているものである。こののち基
体１を金型３を上下に分割して取出す。 The high-temperature base 1 that has just been molded by die-casting is assembled into the mold 3, and the gate 6 is placed in this state.
A resin such as fluorine is injected into the mold 3 through the mold 3 to form a coating layer 7 of the resin on the heat dissipation surface of the base 1. Note that the mold 3 is kept in advance at a temperature suitable for the resin. Thereafter, the mold 3 is divided into upper and lower parts and the base body 1 is taken out.
以上のようにこの発明によれば、ダイカストで
成形した直後の高温の基体をそのまゝ射出成形用
の金型内に組込み、この状態で樹脂を射出し基体
の放熱用の表面にその樹脂による被覆層を形成す
るようにしたから、基体を別途に加熱する必要が
なく、したがつてその加熱用の設備等が不要で安
価にまた能率的に放熱ベースを製造することがで
きる。 As described above, according to the present invention, a high-temperature base body immediately after die-casting is assembled into an injection mold, and resin is injected in this state to cover the heat dissipation surface of the base body with the resin. Since the coating layer is formed, there is no need to separately heat the base, and therefore no heating equipment is required, making it possible to manufacture the heat dissipation base inexpensively and efficiently.
図面はこの発明の一実施例を示し、第１図は基
体を金型内に組込んだ状態の断面図、第２図は基
体の表面に被覆層を施こした状態の断面図であ
る。
１……基体、３……金型、７……被覆層。
The drawings show an embodiment of the present invention; FIG. 1 is a cross-sectional view of the base body assembled in a mold, and FIG. 2 is a cross-sectional view of the base body with a coating layer applied to its surface. 1...Base body, 3...Mold, 7...Coating layer.
Claims (1)
し、この基体の放熱用の表面に金型を用いる樹脂
射出成形により樹脂被覆層を施こすにあたり、上
記基体をダイカストで成形した直後の高温の状態
で上記金型内に組込んで上記樹脂射出成形を行う
ことを特徴とした電熱器具用放熱ベースの製造
法。1. When molding a heat dissipation base base by die casting and applying a resin coating layer to the heat dissipation surface of this base by resin injection molding using a mold, the above-mentioned metal is molded in a high temperature state immediately after die-casting the base body. A method for manufacturing a heat dissipation base for an electric heating appliance, characterized in that the heat dissipation base is assembled into a mold and subjected to the resin injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8764781A JPS57202683A (en) | 1981-06-08 | 1981-06-08 | Method of producing heat radiating base for electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8764781A JPS57202683A (en) | 1981-06-08 | 1981-06-08 | Method of producing heat radiating base for electric heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57202683A JPS57202683A (en) | 1982-12-11 |
| JPH0155557B2 true JPH0155557B2 (en) | 1989-11-24 |
Family
ID=13920760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8764781A Granted JPS57202683A (en) | 1981-06-08 | 1981-06-08 | Method of producing heat radiating base for electric heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57202683A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4800661A (en) * | 1986-05-20 | 1989-01-31 | Toshiba Heating Appliances Co., Ltd. | Electric iron |
| JP6521918B2 (en) * | 2016-08-24 | 2019-05-29 | トヨタ自動車株式会社 | Heat sink manufacturing method |
| JP6394660B2 (en) | 2016-08-24 | 2018-09-26 | トヨタ自動車株式会社 | Heat sink inspection method, inspection apparatus and manufacturing method |
| JP6477659B2 (en) | 2016-10-19 | 2019-03-06 | トヨタ自動車株式会社 | Heat sink inspection method and heat sink manufacturing method |
| JP6477667B2 (en) | 2016-11-08 | 2019-03-06 | トヨタ自動車株式会社 | Molded body manufacturing method and molded body manufacturing apparatus |
| JP6766734B2 (en) * | 2017-04-03 | 2020-10-14 | トヨタ自動車株式会社 | How to make a heat sink |
| JP6907951B2 (en) | 2018-01-11 | 2021-07-21 | トヨタ自動車株式会社 | Heat sink inspection method, inspection equipment and production method, production system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4852630A (en) * | 1971-11-05 | 1973-07-24 | ||
| JPS51108630A (en) * | 1975-03-20 | 1976-09-27 | Toyo Bearing Mfg Co | Kinzokubuzaini taimaseihyomenokeiseisuruhoho |
-
1981
- 1981-06-08 JP JP8764781A patent/JPS57202683A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4852630A (en) * | 1971-11-05 | 1973-07-24 | ||
| JPS51108630A (en) * | 1975-03-20 | 1976-09-27 | Toyo Bearing Mfg Co | Kinzokubuzaini taimaseihyomenokeiseisuruhoho |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57202683A (en) | 1982-12-11 |
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