JPS6171156A - Repairing method of casting mold - Google Patents
Repairing method of casting moldInfo
- Publication number
- JPS6171156A JPS6171156A JP19169384A JP19169384A JPS6171156A JP S6171156 A JPS6171156 A JP S6171156A JP 19169384 A JP19169384 A JP 19169384A JP 19169384 A JP19169384 A JP 19169384A JP S6171156 A JPS6171156 A JP S6171156A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- mold
- damaged part
- damaged
- casting
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/06—Ingot moulds or their manufacture
- B22D7/066—Manufacturing, repairing or reinforcing ingot moulds
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はテルミット剤を用いて鋳型損傷部を補１きする
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of repairing a damaged part of a mold using a thermite agent.
鋳型を繰返し使用すると、熱歪を生じその結果亀裂が発
生したり、或いは欠損が生じる。また溶鋼注入温度が１
５９０℃以上の高温である二とや、偏心注入等の原因で
大きな損傷が生じ、これを補（しするだめに鋳物用溶接
棒で、損傷部を肉盛り溶接す５ａＶでこれには多大な時
間？要していた、また別な方法としてはテルミット剤を
用い溶着する技術は特公昭５５−４８４８８号、あるい
は特開昭５３−９２１９号があるが、これらは比較的小
さい鋳型横部分にテルミット剤ヲ溶着させ、スラグを除
去し研磨仕上げをする方法で、鋳型損傷部とテルミット
剤のみで溶着したのでは、補修した鋳型に溶ｗ４を注入
した際、補修部分に溶鋼が溶着し、型抜きに支障をきた
す。Repeated use of the mold causes thermal distortion, resulting in cracking or chipping. Also, the molten steel injection temperature is 1
Large damage occurs due to the high temperature of 590℃ or higher, eccentric injection, etc., and to repair it (welding the damaged part with a foundry welding rod at 5aV), it is necessary to repair the damage. Another method that required a lot of time and welding using a thermite agent is disclosed in Japanese Patent Publication No. 48488/1982 or Japanese Patent Application Laid-open No. 9219/1983, but these methods do not allow welding of thermite in the side parts of relatively small molds. If the damaged part of the mold is welded with only thermite agent, the molten steel will be welded to the repaired part, and the mold will be removed. cause trouble.
つぎに多量のテルミット剤を使用して損傷部分を一度に
溶着補修すると、冷却時に鋳型母材と溶着接合部あるい
は溶着部に亀裂が発生するといつた問題がらり、しかも
−回で溶着補修をした鋳型に溶鋼を注入して使用してい
ると、再び溶着補修部が欠損し、再度、大巾な補修が必
要とな丞といりた欠点カニらりた。Next, if a large amount of thermite is used to weld and repair the damaged part at once, there will be problems such as cracks occurring between the mold base material and the welded joint or the welded part during cooling. When molten steel was injected and used, the welded repair part was damaged again, and extensive repair was required again.
前記したような原因で生ずる大きな鋳型損傷部を短時間
で補修すると共に、補（さ箇所に溶鋼が浴着するの士防
ぐことを図ったものである。This is intended to repair large mold damage parts caused by the causes mentioned above in a short time, and to prevent molten steel from adhering to the repaired parts.
Ｊ発明が解決しようとする手段〕
ツ１型の１８廖部をストレートドリルで複数箇所座ぐり
を施すと共に該損傷部テ耐人物等で複数箇所（こ仕切り
、各々仕切られ独立したｔＡ ｍ部ＫＩｌｒ１次テルミ
／ト剤と充填し溶融溶着せしめ、各々に仕切ったｔｖ傷
部の溶着を全部終えた後に、テルミット剤で溶着した表
層部分をさらに鋳物用溶接棒で鋳型母材の表面まで肉盛
り溶接を行なう。なお複数箇所：こ仕切った損傷部の補
修は、最初に損傷部の・バ区工にテルミット剤を充填、
溶融溶着し 順次内側へと溶着する手段で本発明をなし
得る。[Means to be solved by the invention J] Countersinking the 18th part of the 18th part with a straight drill, and dividing the damaged part with a resistor etc. at multiple places (this partition, each partitioned and independent tA m part KIlr1 Next, fill with thermite agent and melt and weld it, and after welding all the partitioned TV scratches, weld the surface layer welded with thermite agent to the surface of the mold base material using a foundry welding rod. When repairing multiple damaged areas, first fill the thermite agent in the damaged areas and
The present invention can be accomplished by melt welding and successive welding inward.
１丁 実り９０ｆンリ 〕
鋳型の損傷部１？ストレートドリルで深さ３０〜１００
□の穴を千鳥状に複数箇所座ぐり３？施し、鋳型損傷部
が鋳型内壁面から外壁面に達している場合や、鋳型コー
ナ一部が欠損した場合には、鋳型４壁面？厚鋼板４で囲
うかあるいは耐火性し／力、モルタル等で周囲を囲い、
チルミノトラ溶融させた時に漏洩しないようにする。つ
ぎに損傷部周辺を耐火レンガ５等で囲い、さら（で鋳型
１ｆｉ傷部金耐火レンガで３分割し、各々が独立した室
７となるようにした後、耐火し／ガ、耐火モルタル、鋳
型ｔガスバーナ等で予熱乾燥し、耐火物等の温度が１５
０〜２００℃に達したら損傷部の外区画からテルミット
剤を充填し溶融させる。この時の子ルミノド剤充填金は
溶着させた時に鋳型母材より３０唄程度溶着衣面が低く
なるように充填した。1 piece, fruitful 90f] Damaged part of mold 1? Depth 30-100 with a straight drill
Counterbore multiple holes in a staggered pattern 3? If the damaged part of the mold reaches from the inner wall of the mold to the outer wall, or if a part of the corner of the mold is missing, the 4th wall of the mold? Surround with thick steel plates 4 or with fireproof/mortar, etc.
To prevent leakage when Chiruminotra is melted. Next, surround the area around the damaged area with fireproof bricks 5, etc., and then divide the damaged part of the mold into three parts using gold refractory bricks so that each chamber becomes an independent chamber 7. Preheat and dry with a gas burner, etc. until the temperature of the refractory is 15%.
When the temperature reaches 0 to 200°C, the thermite agent is filled from the outer section of the damaged area and melted. At this time, the secondary luminod agent filling gold was filled so that the surface of the welding coating was about 30 degrees lower than the mold base material when it was welded.
損傷部の外区画の溶着を終えたら、溶着を終えた内側の
仕切りを除去し再びテルミット剤を充填し、溶融溶着す
る。すべての損傷部の溶着を終了したら囲いを取り除き
、溶着表面層に生成したスラグを除去する。Once the outer partition of the damaged area has been welded, the inner partition that has been welded is removed, filled with thermite again, and melted and welded. After welding all damaged areas, remove the enclosure and remove the slag that has formed on the welding surface layer.
テルミット剤で溶着した箇所の炭素含有量９″１０８８
〜ＬＯ％であるため、補１シシた鋳型に溶鋼テ圧入する
と、溶着部分が＠鋼の顕熱により、溶損する。Carbon content of the part welded with thermite agent: 9″1088
~LO%, so when molten steel is press-fitted into a mold that has been filled, the welded portion will melt due to the sensible heat of the steel.
これを防止するために、鋳型母材表面より３０７程度低
くテルミットを溶着し、この溶着部分より鋳型母材表面
までを一例として炭素含有量３．ｏ ７ ％の一物用溶
接棒にて電気溶接？施し、内盛り仕上げし、鋳型母材の
炭素含有量に近い層を形成し、１容鋼：こ：已溶撰、溶
着を防止した。In order to prevent this, thermite is welded at a lower level than the surface of the mold base material by about 30%, and the carbon content from this welded part to the surface of the mold base material is, for example, 3. o Electric welding with a 7% one-piece welding rod? The mold was coated and finished to form a layer with a carbon content close to that of the mold base material, thereby preventing melting and welding of the 1-volume steel.
また複数箇所に仕切って、′ｉ直次溶着補修した鋳型外
面に小さな亀裂つ：主じているため、前記したラミ物用
舊接棒で１＠接し、仕上げ研磨をして外面の補強と痴し
た。In addition, since there are mainly small cracks on the outer surface of the mold that was divided into multiple parts and repaired by direct welding, we connected them with the above-mentioned laminate joint rod and finished polishing to strengthen and repair the outer surface. did.
角型？＝傷部全テルミット剤金使用して補修する方ミで
舊拶部０に複数箇所の座ぐり全部すと、鋳型母材（（強
固にテルミット剤が溶着し、しかも複数箇所に仕切り溶
着補修しているため、再）吏用時ｖＣ補１戊箇所う：欠
損しても従来のように補修箇所全体う：欠損するといっ
たことがなくなり、二次補修（′こ要する時間が短かく
てすむ。Square shape? = If you repair all the scratches using thermite, and if you make all the counterbore holes in the opening part 0, the thermite will be firmly welded to the mold base material, and the parts will be welded and repaired in multiple places. Therefore, even if the vC repair part is damaged during re-use, the entire repaired part will not be damaged as in the conventional case, and the time required for secondary repair can be shortened.
また、テルミット剤のみで損傷部の補修？していないの
で補修部分が溶鋼と溶着しないので鋼塊の型抜きが容易
に実施できると共に、鋳型に大きな欠損テ生じた場合、
従来廃却処分をしていたが、ｆ究明法により補修し再使
用が可能となったため、ｕｊ型原煩泣低減ができ、しか
も補修費の低減も計られた。Also, can you repair the damaged area with only thermite agent? Since the repaired part is not welded to the molten steel, the steel ingot can be easily demolded, and if a large defect occurs in the mold,
Conventionally, they were disposed of, but with the f-research method, they can now be repaired and reused, reducing the number of UJ type defects and reducing repair costs.
第１図は鋳型損傷部を耐火物で囲い、かつゼ負傷部を分
割した図である ・
第２図は損傷部の鋳型下面および損（早部に鋼板を溶接
した図である。
第３区は損傷部？テルミット剤で溶着した図である。
第４図は鋳型損傷部を示す図であるっ
第５図は鋳型損傷部に座ぐり全部した図である。
１ 鋳型
２、損傷部
３ 座ぐり
４ 鋼板
５゛耐大物製の囲い
６ ：テルミ ノド溶着
７ 室
特許出願人 日新製鋼株式会社（ほか１名）第１図
第２図
第３図Figure 1 shows the damaged part of the mold surrounded by refractories and the damaged part divided into parts. Figure 2 shows the damaged part of the lower surface of the mold and the damaged part (with a steel plate welded to the early part. Section 3) is a diagram showing the damaged part, which was welded with thermite agent. Figure 4 is a diagram showing the damaged part of the mold. Figure 5 is a diagram showing the damaged part of the mold completely counterbore. 1 Mold 2, damaged part 3 Seat Hole 4 Steel plate 5゛ Heavy-duty enclosure 6: Terminus Node welding 7 Room Patent applicant Nisshin Steel Co., Ltd. (and 1 other person) Fig. 1 Fig. 2 Fig. 3
Claims (1)
鋳型損傷部に複数箇所の座ぐりを施し、さらに損傷部を
複数箇所に分割し囲うごとく耐火物の室を設け、テルミ
ット剤を充填し、該テルミットを溶融して鋳型損傷部に
溶着させた後、溶着部をさらに鋳物用溶接棒で肉盛りす
る鋳型の補修方法。In the method of repairing a mold using a thermite agent,
After making multiple counterbores in the damaged part of the mold, dividing the damaged part into multiple parts and creating a refractory chamber to surround it, filling the thermite agent, and melting the thermite and welding it to the damaged part of the mold. , a mold repair method in which the welded area is further built up using a foundry welding rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19169384A JPS6171156A (en) | 1984-09-14 | 1984-09-14 | Repairing method of casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19169384A JPS6171156A (en) | 1984-09-14 | 1984-09-14 | Repairing method of casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6171156A true JPS6171156A (en) | 1986-04-12 |
Family
ID=16278890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19169384A Pending JPS6171156A (en) | 1984-09-14 | 1984-09-14 | Repairing method of casting mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6171156A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500555A (en) * | 2018-03-30 | 2018-09-07 | 丁积军 | Welding repair method for chain |
| CN113634862A (en) * | 2021-09-16 | 2021-11-12 | 无锡市新达共创纳米科技有限公司 | Plasma surfacing method for refractory brick mold surface |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS558321A (en) * | 1978-07-01 | 1980-01-21 | Aikoo Kk | Repair method of steel ingot casting mold and molding board |
-
1984
- 1984-09-14 JP JP19169384A patent/JPS6171156A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS558321A (en) * | 1978-07-01 | 1980-01-21 | Aikoo Kk | Repair method of steel ingot casting mold and molding board |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500555A (en) * | 2018-03-30 | 2018-09-07 | 丁积军 | Welding repair method for chain |
| CN108500555B (en) * | 2018-03-30 | 2019-08-02 | 丁积军 | Welding repair method for chain |
| CN113634862A (en) * | 2021-09-16 | 2021-11-12 | 无锡市新达共创纳米科技有限公司 | Plasma surfacing method for refractory brick mold surface |
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