Blasting container

Abstract

A blasting container for blasting workpieces with blasting medium has a wall that is provided with outlet openings for blasting medium. Covers are located at the outer side of the wall above the openings.

1 . A blasting container for blasting workpieces with a blasting medium, said blasting container comprising at least one wall having an inner side and an outer side, wherein the wall is provided with a first and at least one further opening for a discharge of blasting medium,
 wherein a cover is located at the outer side of the wall above the first and above the further opening, with a passage for blasting medium being formed between the cover and the opening covered by said cover.   
     
     
         2 . The blasting container according to  claim 1 ,
 wherein the cover completely covers the opening.   
     
     
         3 . The blasting container according to  claim 2 ,
 wherein the area of the cover is larger than that of the opening.   
     
     
         4 . The blasting container according to  claim 1 ,
 wherein the cover is planar in the region of the opening.   
     
     
         5 . The blasting container according to  claim 1 ,
 wherein the geometry of the outer contour of the opening and the cover is the same.   
     
     
         6 . The blasting container according to  claim 1 ,
 wherein the cover has margins that are curved in the direction of the wall.   
     
     
         7 . The blasting container according to  claim 1 ,
 wherein the wall has opening margins that are curved in the direction of the cover.   
     
     
         8 . The blasting container according to  claim 1 ,
 wherein the cover is provided with elevations at its side facing the opening.   
     
     
         9 . The blasting container according to  claim 1 ,
 wherein the cover is fastened to the wall.   
     
     
         10 . The blasting container according to  claim 1 ,
 wherein it is double-walled, with the wall having the openings being an inner wall that is surrounded by an outer wall that is provided with the covers.   
     
     
         11 . The blasting container according to  claim 10 ,
 wherein the outer wall is also provided with openings for a discharge of blasting medium, said openings being arranged offset from the openings of the inner wall.   
     
     
         12 . The blasting container according to  claim 1 ,
 wherein the wall is formed in the region of a recess by an insert that is inserted into the recess, with the insert having the openings and at least one cover being fastened to an outer side of the insert.   
     
     
         13 . A method for blasting workpieces with blasting medium in a blasting container, said blasting container comprising at least one wall having an inner side and an outer side, wherein the wall is provided with a first and at least one further opening for a discharge of blasting medium, wherein a cover is located at the outer side of the wall above the first and above the further opening, with a passage for blasting medium being formed between the cover and the opening covered by said cover, wherein
 the maximum clear width of the openings is W max , and   the maximum dimension of the workpieces is L max , wherein   L max  is greater than W max .   
     
     
         14 . The method according to  claim 13 ,
 wherein the maximum dimension of the blasting medium is S max , and the minimum clear width of the passage is in the range from 3 S max  to 5 S max .   
     
     
         15 . The method according to  claim 13 ,
 wherein the maximum dimension of the workpieces L max  is greater than or equal to the product of the maximum clear width D max  of the passage and the maximum clear width of the opening W max , divided by the minimum dimension L min  of the workpieces.   
     
     
         16 . The method according to  claim 13 ,
 wherein the workpieces are at least sectionally configured as rod-shaped, pin-shaped, blade-shaped and/or tapering to a point.   
     
     
         17 . A blasting system comprising a blasting container and a blasting device for applying blasting medium to workpieces located in the blasting container, said blasting container comprising at least one wall having an inner side and an outer side, wherein the wall is provided with a first and at least one further opening for a discharge of blasting medium, and wherein a cover is located at the outer side of the wall above the first and above the further opening, with a passage for blasting medium being formed between the cover and the opening covered by said cover.