JPS55158139A - Plate glass curving method and its apparatus - Google Patents

Plate glass curving method and its apparatus

Info

Publication number
JPS55158139A
JPS55158139A JP6481179A JP6481179A JPS55158139A JP S55158139 A JPS55158139 A JP S55158139A JP 6481179 A JP6481179 A JP 6481179A JP 6481179 A JP6481179 A JP 6481179A JP S55158139 A JPS55158139 A JP S55158139A
Authority
JP
Japan
Prior art keywords
glass
suspended
end distance
dies
state
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
JP6481179A
Other languages
Japanese (ja)
Other versions
JPS5850934B2 (en
Inventor
Masaaki Hattori
Miekichi Fujisawa
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 Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass 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 Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Priority to JP6481179A priority Critical patent/JPS5850934B2/en
Publication of JPS55158139A publication Critical patent/JPS55158139A/en
Publication of JPS5850934B2 publication Critical patent/JPS5850934B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
    • C03B23/031—Re-forming glass sheets by bending by press-bending between shaping moulds the glass sheets being in a vertical position

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

PURPOSE: To curve suspended plate glass without lowering the strength of the suspended portion by making the upper end distance between a female die and a male die with the glass set inbetween narrower than the lower end distance to form a forward inclination state and curving the glass from the upper side to the lower side.
CONSTITUTION: Plate glass 20 heat treated at the deformation temp. or above in a heating furnace is suspended with suspending metal fitting 21 at the upper end portion and set between female die 22 and male die 23. The upper end distance between dies 22, 23 is made narrower than the lower end distance to form a forward inclination state. While maintaining this state the space is narrowed, and in the early stage of press molding an upper portion of glass 20 is pressed by dies 22, 23. The inclination state is then shifted to an upright state to pressure-contact dies 22, 23 to glass 20. Thus, the portion being pressurized expands from the upper side to the lower side to finish curving with reduced bending load of the suspended portion, and plate 20 is curved while being applied with upward pushing force to prevent occurrence of strain and stress at the suspended portion.
COPYRIGHT: (C)1980,JPO&Japio
JP6481179A 1979-05-25 1979-05-25 Curved forming method and device for plate glass Expired JPS5850934B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6481179A JPS5850934B2 (en) 1979-05-25 1979-05-25 Curved forming method and device for plate glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6481179A JPS5850934B2 (en) 1979-05-25 1979-05-25 Curved forming method and device for plate glass

Publications (2)

Publication Number Publication Date
JPS55158139A true JPS55158139A (en) 1980-12-09
JPS5850934B2 JPS5850934B2 (en) 1983-11-14

Family

ID=13268993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6481179A Expired JPS5850934B2 (en) 1979-05-25 1979-05-25 Curved forming method and device for plate glass

Country Status (1)

Country Link
JP (1) JPS5850934B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2487089C1 (en) * 2011-11-22 2013-07-10 Открытое акционерное общество "Обнинское научно-производственное предприятие "Технология" Method of bending glass sheet

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61249746A (en) * 1985-04-30 1986-11-06 帝人株式会社 Laminate for sail
JPS6226403U (en) * 1985-07-25 1987-02-18
JPH0345127U (en) * 1990-09-05 1991-04-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2487089C1 (en) * 2011-11-22 2013-07-10 Открытое акционерное общество "Обнинское научно-производственное предприятие "Технология" Method of bending glass sheet

Also Published As

Publication number Publication date
JPS5850934B2 (en) 1983-11-14

Similar Documents

Publication Publication Date Title
AU3040284A (en) Producing shaped metal parts from slurry structured freestanding metal preforms
EP0272067A3 (en) Process and apparatus for upset forging of long stands of metal bar stock
IE32310B1 (en) Improvements in or relating to the manufacture of curved glass
US4113522A (en) Method of making a metallic structure by combined superplastic forming and forging
JPS55158139A (en) Plate glass curving method and its apparatus
GB1387415A (en) Method of and apparatus for producing a hot pressed component
TR199701523T1 (en) The method of bending glass sheets.
IE33195L (en) Bending glass sheets
JPH0871652A (en) V-bending method excellent in bending limit and shapeability
SU1278092A1 (en) Method of swaging ingots
GB2029304A (en) Method of making a metallic structure
Teodosiu et al. Residual stresses after axisymmetric deep drawing
US4821554A (en) Press forging of molybdenum or molybdenum alloy parts
CA1083859A (en) Method of making a metallic structure by combined superplastic forming and forging
Sheng et al. Deformation Pattern of Continuously Cast Blanks During Continuous Levelling.(MITS BISI 28661)[Previously Titled: An Approach of Deformation Pattern for Continuously Casted Blank During Continuous Levelling.]
Tushinskii et al. The Effect of the Hot Working Schedule on the Strain Hardening of Austenite in Steel 20
JPS5721234A (en) Production of hardened steel piston ring
Shadskii Change in Temperature of Aluminium-Alloy Forgings in the Process of Straightening in a Heated Press
SU1159714A1 (en) Method of manufacturing articles of open-end sleeve type of hard-to-strain heat-resistant alloys
SU1486248A1 (en) Method of upsetting workpieces
SU1009563A1 (en) Method of producing parts from shapes
Maehara Superplastic Deformation of Duplex Stainless Steel
Brovman et al. Optimal Method of Pipe Upset
Ananyan et al. Heat Treatment of Hot-Deformed Powder Medium-Manganese Steels
Mellor Deep-drawing and stretch forming