Blast treatment device and blast treatment method

Patent metadata

Field	Value
Publication number	US-10099345-B2
Application number	US-201514828848-A
Country	US
Kind code	B2
Filing date	Aug 18, 2015
Priority date	Aug 28, 2014
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

According to one implementation, a blast treatment method includes: setting a blast treatment condition for a composite material to make a degree of activation on the surface of the composite material within an appropriate range, based on reference information; and manufacturing a blast treated product by the blast treatment of the composite material under the blast treatment condition set to make the degree of the activation within the appropriate range. The reference information shows a relation between a strain amount of a test piece caused by blast treatment under a predetermined blast treatment condition and a degree of activation on a surface of a sample of a composite material by blast treatment, for activating the surface of the sample before painting or bonding, under the predetermined blast treatment condition.

First claim

What is claimed is:

1. A blast treatment method comprising:
setting a blast treatment condition for a composite material, the composite material being a target of blast treatment for activating a surface before painting or bonding, to make a degree of activation on a surface of the composite material within an appropriate range, based on reference information, the reference information showing a relation between a strain amount of a test piece caused by blast treatment under a predetermined blast treatment condition and a degree of activation on a surface of a sample of a composite material by blast treatment, for activating the surface of the sample before painting or bonding, under the predetermined blast treatment condition; and
manufacturing a blast treated product by blast treatment of the composite material, the composite material being the target of the blast treatment, under the blast treatment condition set to make the degree of activation within the appropriate range.

2. The blast treatment method according to claim 1 ,
wherein the reference information shows a relation between a strain amount of a test piece corresponding to each predetermined blast treatment condition and the degree of activation on the surface of the sample, the each predetermined blast treatment condition including at least one of an injecting number of media used for the blast treatment, a representative value of an injection distance of the media, and a pressure of compressed air for injecting the media.

3. The blast treatment method according to claim 1 ,
wherein an Almen strip or a test piece substantially equivalent to an Almen strip is used as the test piece, and an arc height value of the Almen strip or the test piece is the strain amount.

4. The blast treatment method according to claim 1 ,
wherein a T strip of an Almen strip or a test piece substantially equivalent to a T strip of an Almen strip is used as the test piece, a carbon fiber reinforced plastic is used as the sample, and an arc height value of the T strip or the test piece is from 0.05 mm to 0.12 mm as the degree of activation on a surface of the carbon fiber reinforced plastic.

5. The blast treatment method according to claim 1 , further comprising:
recording the strain amount of the test piece, corresponding to the set blast treatment condition, as an inspection record of at least one of the composite material after the blast treatment and a blast treatment device used for the blast treatment.

6. The blast treatment method according to claim 1 ,
wherein ceramic particles of which an average particle size is from 106 μm to 150 μm are used as media for the blast treatment.

7. A blast treatment method comprising:
manufacturing a blast treated product by blast treatment of a test piece and a composite material, the composite material being a target of the blast treatment for activating a surface before painting or bonding, the test piece and the composite material being blast treated under a common blast treatment condition;
measuring a strain amount of the test piece after the blast treatment; and
evaluating whether a degree of activation on a surface of the composite material after the blast treatment is within an appropriate range, based on a measurement result of the strain amount and reference information,
wherein the reference information shows a relation between a strain amount of the test piece or another test piece caused by blast treatment under a predetermined blast treatment condition and a degree of activation on a surface of a sample of a composite material by blast treatment, for activating the surface of the sample before painting or bonding, under the predetermined blast treatment condition.

8. The blast treatment method according to claim 7 , further comprising:
recording the measurement result of the strain amount as an inspection record of at least one of the composite material after the blast treatment and a blast treatment device used for the blast treatment.

9. The blast treatment method according to claim 7 ,
wherein the reference information shows a relation between a strain amount of a test piece corresponding to each predetermined blast treatment condition and the degree of activation on the surface of the sample, the each predetermined blast treatment condition including at least one of an injecting number of media used for the blast treatment, a representative value of an injection distance of the media, and a pressure of compressed air for injecting the media.

10. The blast treatment method according to claim 7 ,
wherein an Almen strip or a test piece substantially equivalent to an Almen strip is used as the test piece, and an arc height value of the Almen strip or the test piece is the strain amount.

11. The blast treatment method according to claim 7 ,
wherein a T strip of an Almen strip or a test piece substantially equivalent to a T strip of an Almen strip is used as the test piece, a carbon fiber reinforced plastic is used as the sample, and an arc height value of the T strip or the test piece is from 0.05 mm to 0.12 mm as the degree of activation on a surface of the carbon fiber reinforced plastic.

12. The blast treatment method according to claim 7 ,
wherein ceramic particles of which an average particle size is from 106 μm to 150 μm are used as media for the blast treatment.

13. A blast treatment method comprising:
setting a blast treatment condition under which an arc height value of a T strip of an Almen strip or a test piece substantially equivalent to a T strip of an Almen is from 0.05 mm to 0.12 mm by blast treatment; and
manufacturing a blast treated product by blast treatment of a composite material, the composite material being a target of the blast treatment for activating a surface before painting or bonding, under the blast treatment condition.

14. The blast treatment method according to claim 13 ,
wherein ceramic particles of which an average particle size is from 106 μm to 150 μm are used as media for the blast treatment.

15. A blast treatment device comprising:
storage circuitry storing reference information showing a relation between a strain amount of a test piece caused by blast treatment under a predetermined blast treatment condition and a degree of activation on a surface of a sample of a composite material by blast treatment for activating the surface before painting or bonding under the predetermined blast treatment condition;
processing circuitry configured to set a blast treatment condition for a composite material, the composite material being a target of blast treatment for activating a surface before painting or bonding, to make a degree of activation on the surface of the composite material, the composite material being the target of the blast treatment, within an appropriate range, based on the reference information; and
blasting structure that performs blast treatment of the composite material, the composite material being the target of the blast treatment, under the blast treatment condition determined to make the degree of activation within the appropriate range.

Assignees

• Fuji Heavy Ind Ltd
• Subaru Corp

Inventors

• Kondo Yoshihiko
• Takazawa Hirotsugu
• Matsuo Shinya
• Nakahata Tatsuo
• Shibasaki Osamu
• Ono Ryohei

Classifications

• B24C7/0053

  with control of feed parameters, e.g. feed rate of abrasive material or carrier · CPC title

• B24C3/32

  designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks (B24C3/08, B24C3/18 take precedence) · CPC title

• B24C11/00

  Selection of abrasive materials {or additives} for abrasive blasts (polishing compositions C09G) · CPC title

• B24C1/06 Primary

  for producing matt surfaces, e.g. on plastic materials, on glass · CPC title

• G01N3/08

  by applying steady tensile or compressive forces (G01N3/28 takes precedence) · CPC title