GB498691A - Improvements in the manufacture of piston and like rings of the composite type - Google Patents

Improvements in the manufacture of piston and like rings of the composite type

Info

Publication number
GB498691A
GB498691A GB1988637A GB1988637A GB498691A GB 498691 A GB498691 A GB 498691A GB 1988637 A GB1988637 A GB 1988637A GB 1988637 A GB1988637 A GB 1988637A GB 498691 A GB498691 A GB 498691A
Authority
GB
United Kingdom
Prior art keywords
per cent
ring
rings
cast iron
steel
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.)
Expired
Application number
GB1988637A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1988637A priority Critical patent/GB498691A/en
Publication of GB498691A publication Critical patent/GB498691A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/08—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass piston rings from several pieces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

Composite piston and like rings comprising inner and outer layers of different metals or alloys are made either by cutting from a pot composed of two superposed cylinders brazed, soldered or welded together, or the two parts are made separately and stacked round a shell of brazing material. The outer ring may be of cast iron and the inner ring of steel. Heat treating may also be effected before or after the rings are parted from the pot so as to harden one or both parts or the hardening may be effected during brazing. The cast iron ring may contain carbon 3,4 per cent (combined carbon 0,65 per cent), silicon 2 per cent, nickel 0,5 per cent, molybdenum 0,6 per cent, and copper 0,3 per cent, and the steel ring may contain carbon 0,5 per cent, chromium 0,75 per cent, and molybdenum 0,25 per cent, so that both components may be hardened at one operation at the same temperature, e.g. 850 DEG C. and subsequently tempered as desired. Hardening may be effected by oil, water or air cooling. The cast iron may be of the austenitic type, in which case the steel only is hardened, e.g. by heat applied behind the composite ring.
GB1988637A 1937-07-19 1937-07-19 Improvements in the manufacture of piston and like rings of the composite type Expired GB498691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1988637A GB498691A (en) 1937-07-19 1937-07-19 Improvements in the manufacture of piston and like rings of the composite type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1988637A GB498691A (en) 1937-07-19 1937-07-19 Improvements in the manufacture of piston and like rings of the composite type

Publications (1)

Publication Number Publication Date
GB498691A true GB498691A (en) 1939-01-12

Family

ID=10136810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1988637A Expired GB498691A (en) 1937-07-19 1937-07-19 Improvements in the manufacture of piston and like rings of the composite type

Country Status (1)

Country Link
GB (1) GB498691A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239926A (en) * 1990-01-09 1991-07-17 Ae Piston Products Piston rings
US5461776A (en) * 1990-01-09 1995-10-31 Ae Piston Products Limited Method of manufacturing piston rings

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239926A (en) * 1990-01-09 1991-07-17 Ae Piston Products Piston rings
GB2239926B (en) * 1990-01-09 1994-03-02 Ae Piston Products Piston rings
US5461776A (en) * 1990-01-09 1995-10-31 Ae Piston Products Limited Method of manufacturing piston rings

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