JPS60141349A - Spraying method in die casting - Google Patents

Spraying method in die casting

Info

Publication number
JPS60141349A
JPS60141349A JP24793783A JP24793783A JPS60141349A JP S60141349 A JPS60141349 A JP S60141349A JP 24793783 A JP24793783 A JP 24793783A JP 24793783 A JP24793783 A JP 24793783A JP S60141349 A JPS60141349 A JP S60141349A
Authority
JP
Japan
Prior art keywords
die
water
temp
mold
spraying
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.)
Pending
Application number
JP24793783A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Maeda
前田　義行
Tadashi Jin
神　忠
Katsumi Sakamoto
勝美 坂本
Monzaburou Ishihara
石原　紋三郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ahresty Corp
Original Assignee
Fuso Light Alloys Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuso Light Alloys Co Ltd filed Critical Fuso Light Alloys Co Ltd
Priority to JP24793783A priority Critical patent/JPS60141349A/en
Publication of JPS60141349A publication Critical patent/JPS60141349A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/2007—Methods or apparatus for cleaning or lubricating moulds

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Abstract

PURPOSE:To mitigate the thermal impact on the surface of a die to prevent a heat check and to extend the life of the die by spraying a water-soluble release material onto the die after heating said agent. CONSTITUTION:The surface temp. of a die varies with places and is 150-300 deg.C in average. Said temp. is required to be maintained as far as possible. The temp. decreasing rate of the die is therefore decreased and the die temp. is made higher by 5-10 deg.C in average by spraying a water-soluble release material heated to 80 deg.C to the die by which the thermal impact on the die surface is mitigated, a heat check is prevented ans the life of the die is extended. Partial overcooling is thus prevented and the defects such as generation of misrun, remaining of water owing to insufficient drying are eliminated.

Description

【発明の詳細な説明】 本発明はダイカストにおけるスプレー方法の改良に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in spraying methods in die casting.

ダイカストにおいて、金型にスプレー装置を用いて水溶
性離型剤をスプレーすると、金型表面は急激に冷されて
熱衝撃を受（プ、その為早期にヒートチェック（キ１ｒ
ビティ表面に発生するネット状の細かいクラック）を発
生し、金型の寿命を著しく損う。しかも、金型表面には
凹凸があり、各部分によって熱容Ｍが責なる為、場所に
よっては冷過ぎる部分が生じ、その結果湯廻り不良を起
したり乾燥不足による水残りを来たし、不良品を発生ず
るといった問題があった本発明はこの様な従来の問題点
に鑑み、水溶性離型剤を加熱した上で金型にスプレーす
ることにより、前記問題点を解消せんとづるｔものであ
る。In die casting, when a water-soluble mold release agent is sprayed onto the mold using a spray device, the surface of the mold is rapidly cooled and subjected to thermal shock.
Fine net-like cracks occur on the surface of the mold, which significantly shortens the life of the mold. Moreover, the surface of the mold is uneven, and the heat capacity M is affected by each part, so some parts are too cold, resulting in poor water circulation, water remaining due to insufficient drying, and defective products. In view of these conventional problems, the present invention aims to solve the above problems by heating a water-soluble mold release agent and then spraying it onto the mold. be.

金型の表面温度は場所によっても異なるが、平均して１
５０〜３００℃あり、できるだけその温度を保持させて
おくことが望ましい。従って、金型表面にスプレーＪる
水溶性離型剤は、理論的には１５０〜３００℃に加熱し
た上でスプレーした方が良いが、水溶性離型剤を１５０
〜３００℃に加熱するとその成分が分離したり変化を起
すと同時に、蒸気化して危険である為、８０℃前後に加
熱することか望ましい。The surface temperature of the mold varies depending on the location, but on average it is 1
The temperature is 50 to 300°C, and it is desirable to maintain that temperature as much as possible. Therefore, it is theoretically better to spray a water-soluble mold release agent onto the mold surface after heating it to 150 to 300°C.
If heated to ~300°C, the components will separate or change, and at the same time vaporize, which is dangerous, so it is preferable to heat it to around 80°C.

而して、８０℃に加熱した水溶性離型剤を金型にスプレ
ーした処、実験の結果では型温降下速度が従来では毎秒
１４℃であったが毎秒１０℃に緩かになり、また型温も
平均して５〜１０℃程高くなった。When a water-soluble mold release agent heated to 80°C was sprayed onto the mold, experimental results showed that the mold temperature drop rate, which was previously 14°C per second, slowed down to 10°C per second. The mold temperature also increased by about 5 to 10°C on average.

このことは、取りも直さず水溶性離型剤を加。　熱した
上で金型にスプレーすることにより、スプレーにＪ、る
金型表面の熱衝撃を和らげて、ビー１〜ヂエツクを防止
し、金型の寿命を延長させ得るものである。しかも、部
分的な冷遇ぎを防止して、渇廻り不良を起したり、乾燥
不足による水残りをする等の不良を排除し得るものであ
る。This can be solved by adding a water-soluble mold release agent. By spraying the mold after heating it, the thermal shock on the mold surface caused by the spray can be alleviated, preventing bead damage and extending the life of the mold. Moreover, it is possible to prevent partial neglect and eliminate defects such as drying and water remaining due to insufficient drying.

よって、所期の目的を達成し得る。Therefore, the intended purpose can be achieved.

特許出願人　扶桑軽合金株式会社Patent applicant: Fuso Light Alloy Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 水溶性離型剤を加熱した上で金型にスプレーするように
した事を特徴とすダイカストにおけるスプレー方法。A spraying method for die casting, characterized by heating a water-soluble mold release agent and then spraying it onto a mold.
JP24793783A 1983-12-28 1983-12-28 Spraying method in die casting Pending JPS60141349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24793783A JPS60141349A (en) 1983-12-28 1983-12-28 Spraying method in die casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24793783A JPS60141349A (en) 1983-12-28 1983-12-28 Spraying method in die casting

Publications (1)

Publication Number Publication Date
JPS60141349A true JPS60141349A (en) 1985-07-26

Family

ID=17170767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24793783A Pending JPS60141349A (en) 1983-12-28 1983-12-28 Spraying method in die casting

Country Status (1)

Country Link
JP (1) JPS60141349A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281318A2 (en) * 1987-02-28 1988-09-07 Nippondenso Co., Ltd. A die-casting method and device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5227103A (en) * 1975-08-22 1977-03-01 Gorozo Hayashi Apparatus for attenuating noise caused by vibration
JPS58116972A (en) * 1981-12-29 1983-07-12 Fuso Light Alloys Co Ltd Spraying method in die casting

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5227103A (en) * 1975-08-22 1977-03-01 Gorozo Hayashi Apparatus for attenuating noise caused by vibration
JPS58116972A (en) * 1981-12-29 1983-07-12 Fuso Light Alloys Co Ltd Spraying method in die casting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281318A2 (en) * 1987-02-28 1988-09-07 Nippondenso Co., Ltd. A die-casting method and device
JPH01245953A (en) * 1987-02-28 1989-10-02 Nippon Denso Co Ltd Method and apparatus for die casting
US4955424A (en) * 1987-02-28 1990-09-11 Nippondenso Co., Ltd. Die-casting method and device

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