JPS572804A - Production of cutter tip - Google Patents

Production of cutter tip

Info

Publication number
JPS572804A
JPS572804A JP7673580A JP7673580A JPS572804A JP S572804 A JPS572804 A JP S572804A JP 7673580 A JP7673580 A JP 7673580A JP 7673580 A JP7673580 A JP 7673580A JP S572804 A JPS572804 A JP S572804A
Authority
JP
Japan
Prior art keywords
blade edge
edge end
tip
superhard alloy
mold
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
JP7673580A
Other languages
Japanese (ja)
Inventor
Isao Hirata
Hiroshi Shioda
Naoki Noguchi
Ryoji Niiyama
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP7673580A priority Critical patent/JPS572804A/en
Publication of JPS572804A publication Critical patent/JPS572804A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/285—Teeth characterised by the material used

Abstract

PURPOSE: To economically produce a tip of superior excavating performance and durability by coating superhard alloy powder on the blade edge end or the part that serves as an excavating surface of the blade edge end of a tip in a mold for cutter tips then pouring base casting steel into the mold.
CONSTITUTION: Superhard alloy powder is disposed only on the blade edge end of the cutter tip in a mold for cutter tips or the part that serves as an excavating surface 1 at the blade edge end, after which cast steel which is an ordinary base material 2 is poured and is hardened by sintering to simultaneously cast the excavating surface 1 for the blade edge end of the superhard alloy and the base material 2, thereby manufacturing the cutter tip. This method is a so-called metal clad casting method, whereby the fracture at the blade edge can be prevented because the surface 1 harder than bedrock is supported by the material 2 which is softer and more ductile than the same. Since there is no need for heat treatment and machining and just a small amount of superhard alloy is required, this method is economical.
COPYRIGHT: (C)1982,JPO&Japio
JP7673580A 1980-06-09 1980-06-09 Production of cutter tip Pending JPS572804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7673580A JPS572804A (en) 1980-06-09 1980-06-09 Production of cutter tip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7673580A JPS572804A (en) 1980-06-09 1980-06-09 Production of cutter tip

Publications (1)

Publication Number Publication Date
JPS572804A true JPS572804A (en) 1982-01-08

Family

ID=13613838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7673580A Pending JPS572804A (en) 1980-06-09 1980-06-09 Production of cutter tip

Country Status (1)

Country Link
JP (1) JPS572804A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081774A (en) * 1988-12-27 1992-01-21 Sumitomo Heavy Industries Foundry & Forging Co., Ltd. Composite excavating tooth
CN104801714A (en) * 2015-03-24 2015-07-29 青岛科技大学 Manufacturing method of gas cutting opening
CN106040997A (en) * 2016-08-16 2016-10-26 宁波吉威熔模铸造有限公司 Precise casting technology for wear-resisting metal component

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081774A (en) * 1988-12-27 1992-01-21 Sumitomo Heavy Industries Foundry & Forging Co., Ltd. Composite excavating tooth
CN104801714A (en) * 2015-03-24 2015-07-29 青岛科技大学 Manufacturing method of gas cutting opening
CN106040997A (en) * 2016-08-16 2016-10-26 宁波吉威熔模铸造有限公司 Precise casting technology for wear-resisting metal component

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