Apparatus and method of powder-metal peen coating metallic surfaces

• US 4,753,094 A
• Filed: 06/19/1986
• Issued: 06/28/1988
• Est. Priority Date: 06/19/1986
• Status: Expired due to Term

• Current Assignee: Richard L. Spears
• Original Assignee: Richard L. Spears
• Inventors: Spears, Richard L.
• Primary Examiner(s): Jones, David
• Application Number:
  US06/876,032
• Time in Patent Office: 740 Days
• Field of Search: 72/42, 72/46, 72/53, 72/44, 72/43, 427/289, 427/190, 427/191, 427/192, 427/11, 427/421, 51/26, 51/320, 51/410
• US Class Current: 72/53
• CPC Class Codes: B05B 14/435 with means for cleaning the filters by gas flow, e.g. blasts of air
• CPC Class Codes: B05B 14/48 specially adapted for particulate material
• CPC Class Codes: B05B 7/144 the means for supplying particulate material comprising moving mechanical means B05B7/1422, B05B7/1459 take precedence
• CPC Class Codes: B24C 1/10 for compacting surfaces, e.g. shot-peening for deforming sheet metal, tubes or profiles B21D31/06; as a metallurgical treatment C21D7/00, C22F1/00
• CPC Class Codes: C23C 24/04 Impact or kinetic deposition of particles
• CPC Class Codes: Y02P 70/10 Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

An apparatus and method for thin film coating a substrate comprising spraying a stream of molybdenum disulfide powder mixed with steel shot at a predetermined velocity against the substrate, the velocity being sufficient, when impacting the substrate, to bond minute plate-like particles of molybdenum disulfide to the substrate and form a friction reducing surface thereon.

Claims

1. The method of lubricant coating a substrate with a compound consisting of:

(a) providing a quantity of molybdenum disulfide as a powder form dry lubricant;

(b) providing a quantity of steel shot of predetermined mass;

(c) commingling the molybdenum disulfide and steel shot to form a coating mix;

(d) continuously agitating the coating mix;

(e) maintaining a desired range of relative humidity surrounding the coating mix by heating air, surrounding the coating mix, to a temperature of approximately 20°

F. above ambient temperature; and

,

(f) impacting a stream of the coating mix on the substrate at a predetermined velocity for a predetermined period of time for fusing and burnishing a portion of the dry lubricant on the substrate.