Αποτελέσματα Αναζήτησης
ISO adapted the most common standard as Sa 2 1/2, Very Thorough Blasting Cleaning, while SSPC used as SP 10 Near White. The two versions were not equal: Sa 2.5 permitted stains, streaks and shadows from rust, mill scale and coatings to remain on up to 15% of the surface, whereas SP 10 allowed for only 5% .
- Roller Conveyor Shot Blast Machine
The Roller conveyor type shot blasting machine is used for...
- Roller Conveyor Shot Blast Machine
Read on Graco why two dominant surface preparation standards through abrasive blasting, ISO 8501 and the SSPC/NACE joint standards, are tough to compare.
SA 2.5 sand blasting is a surface preparation standard for abrasive cleaning. It is a "near white metal" blasting specification, which means that the surface should be free of visible oil, grease, dirt, dust, mill scale, rust, paint coatings and foreign matter.
5 Ιουν 2021 · Q. I need to know the technical details about the following- Surface preparation - Cast Iron part (gratings, used for cooking ranges); the surface needs to be prepared by sand blasting as per Swedish Standard, SA 2.5 or better as per Swedish Standard, SA 3.
• 2.0 cu ft (57 L) capacity • Blast for up to 90 minutes between refills • Works with coarse, fine or non-destructive media • Uses less than 1 qt/min (1.06 L/min) of water Abrasive Supply Line • Quick-release cam and groove connection • Easy access shut-off valve Blast Hose Connection • Accepts 0.5 in or 1 in blast hose
Sa 2.5 is a cleanliness standard, not a surface roughness standard. An example of a surface roughness standard would be ISO 8503. One reason cleanliness is required is because paint will not adhere properly to a dirty surface.
The national standard GB8923-88 “Steel surface preparation standard grades and rust removal grade before painting” classified the rust removal grade of shot blasting machine into four grades, which are represented by the letter “Sa”.
