JPS5564995A - Material for covering of arc welding electrode - Google Patents

Material for covering of arc welding electrode

Info

Publication number
JPS5564995A
JPS5564995A JP13629478A JP13629478A JPS5564995A JP S5564995 A JPS5564995 A JP S5564995A JP 13629478 A JP13629478 A JP 13629478A JP 13629478 A JP13629478 A JP 13629478A JP S5564995 A JPS5564995 A JP S5564995A
Authority
JP
Japan
Prior art keywords
contained
viscosity
surface tension
fluorine
captioned
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.)
Granted
Application number
JP13629478A
Other languages
Japanese (ja)
Other versions
JPS5926397B2 (en
Inventor
Seikichi Tabei
Shigeo Sasaki
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.)
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical Industrial 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 Nippon Chemical Industrial Co Ltd filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP13629478A priority Critical patent/JPS5926397B2/en
Publication of JPS5564995A publication Critical patent/JPS5564995A/en
Publication of JPS5926397B2 publication Critical patent/JPS5926397B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To shift the slight amount of P in the electrode core wire into molten slag and achieve the improvement in the decrease of welding strength by P by using the amorphous fluorine-contained or fluorine-contained and magnesium-oxide-contained calcium silicate whose relations of viscosity and surface tension are within the limited range and which is expressed by the specific constitutional formula as the captioned meterial.
CONSTITUTION: The amorphous fluorine-contained or fluorine-contained and magnesium-oxide-contained calcium silicate whose relations of viscosity and surface tension at 1550°C are in the range encircled by A (viscosity 1.6 poise; surface tension 410 dyne/cm) - B(1.8; 438) - C(2.8; 406) - D(1.8; 378) and which is expressed by the constitutional formula [(1-n)CaO+nMgO].xSiO2.yF(where n is 0.3, x= 0.77W1, y=0.05W0.3) is used as the captioned material. If y is within the abovementioned range, the material becomes the glassy material of moderate silicic acid molecular chain lengths and therefore the surface tension of the melt is adequate and viscosity becomes consistent, thus it is adquate in terms of the performance of the covering material and the welding work.
COPYRIGHT: (C)1980,JPO&Japio
JP13629478A 1978-11-07 1978-11-07 Arc welding rod coating material Expired JPS5926397B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13629478A JPS5926397B2 (en) 1978-11-07 1978-11-07 Arc welding rod coating material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13629478A JPS5926397B2 (en) 1978-11-07 1978-11-07 Arc welding rod coating material

Publications (2)

Publication Number Publication Date
JPS5564995A true JPS5564995A (en) 1980-05-16
JPS5926397B2 JPS5926397B2 (en) 1984-06-27

Family

ID=15171804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13629478A Expired JPS5926397B2 (en) 1978-11-07 1978-11-07 Arc welding rod coating material

Country Status (1)

Country Link
JP (1) JPS5926397B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102179643B (en) * 2011-04-20 2013-03-20 大石桥市美尔镁制品有限公司 Preparation method of magnesium oxide powder for welding electrode coating

Also Published As

Publication number Publication date
JPS5926397B2 (en) 1984-06-27

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