Sprayed film forming method and apparatus

A technology of spray coating and coating gun, which is applied in the field of spray coating forming devices, and can solve the problems of increased materials for spray coating, increased spray coating time, and increased finishing time, etc.

Active Publication Date: 2009-04-29
NISSAN MOTOR CO LTD
View PDF1 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, in such a current situation, in order to obtain a predetermined film thickness after finishing processing such as honing after the formation of the sprayed film, it is necessary to further increase the thickness of the part where the film thickness is thinned, and correspondingly increase the thick

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sprayed film forming method and apparatus
  • Sprayed film forming method and apparatus
  • Sprayed film forming method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0016] figure 1 It is a simplified overall configuration diagram showing a thermal sprayed film forming device according to the first embodiment of the present invention. A sprayed coating gun 5 is used to form a sprayed coating on the cylinder inner surface 3a of the cylinder tube 3 in the aluminum alloy cylinder block 1 of the engine. Coating 7. Here, the circular hole is formed by the cylinder 3, and the inner surface of the circular hole is formed by the cylinder inner surface 3a.

[0017] exist figure 1 In the spraying gun 5, there is a spraying nozzle part 9 on the tip side corresponding to the lower end side, and a metal wire 11 as a material for spraying made of an iron-based metal is drawn from the figure 1 The upper end of the spray gun 5 is inserted into the spray gun 5 and supplied to the spray nozzle part 9 .

[0018] The thermal spray gun 5 has a rotat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention provides a method for forming sprayed film and a device thereof, which can restrain the operating time and the increase of material used for spraying, and furthermore the film thickness of the axial end of the round hole is equal with that of other part. The device for forming sprayed film causes that a spraying film (7) is formed on the inner surface (3a) of the cylinder at a state that a spraying gun (5) rotates and axially moves simultaneously in the cylinder (3). Simultaneously a sucking device (49) is used for sucking the air in the cylinder (3) for leading to the air flowing in the cylinder (3) for preventing the entering of foreign object into the spraying film (7). A tendency that the air velocity in the cylinder (3) is larger than the velocity of a preset area A at the axial end of the suction side exists. Under the influence of factors of higher velocity, cylinder shape, etc., the supplying velocity of metal wire (11) which is used as spraying material at the preset area A in which the thickness of spraying film (7) easily becomes thin to the spraying gun (5) is higher than the supplying velocity of other component. Thereby, the film thickness of the spraying film (7) at the preset area A can be increased and the whole film thickness can be homogenized.

Description

[0001] technology area [0002] The present invention relates to a spraying gun that sprays the molten spraying material while melting the supplied spraying material to rotate and move in the axial direction in a circular hole, and to spray the sprayed material on the inner surface of the circular hole A sprayed film forming method and a sprayed film forming apparatus for forming a sprayed film. Background technique [0003] From the perspective of improving the output, fuel consumption performance, and exhaust performance of internal combustion engines, or making them smaller and lighter, the design of cylinder liners suitable for the cylinder part of the abolished aluminum cylinder block is extremely high, and it is one of the alternative technologies. First, the application of a thermal spraying technology for forming a thermal sprayed film made of an iron-based material on the inner surface of an aluminum cylinder barrel has been advanced (see, for example, Patent Document...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C23C4/00
Inventor 寺田大辅铃木清久盐谷英尔清水明田代章晴藤井启
Owner NISSAN MOTOR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap