Abstract: The biopsy device (1) has a biopsy needle (3) including an outer cutting needle (4) and an inner sample needle (5) with a tissue compartment (6) and is adapted to, during each sampling operation, displace the outer cutting needle and the inner sample needle between open and closed positions of the tissue compartment. The biopsy device includes a vacuum source and a valve system (8) adapted to provide a pressure decrease in the tissue compartment at each sampling operation. The vacuum source has the form of at least one initially pre-evacuated vacuum container (91, 92, 93, 94, 95, 96), and the biopsy device is adapted to, by means of the initial vacuum of the at least one initially pre-evacuated vacuum container, provide a pressure decrease in the tissue compartment of the inner sample needle at each one of a limited number of consecutive sampling operations.

Abstract: A description is given of a temperature-stable cast-iron alloy having high wear resistance at temperatures between 500 and 900° C. The alloy is characterized in that it has the following composition expressed in weight percentages: chromium: 15.0-20.0%, carbon: 1.0-2.0%, manganese: 0.8-1.2%, silicon: 1.2-1.5%, nickel: 1.5-2.5%, balance iron and unavoidable metallic and non-metallic contaminants where the non-metallic contaminants comprise nitrogen, oxygen, phosphorous and sulphur. Hereby is obtained a cast-iron alloy which has a higher wear resistance and a reduced tendency to form the undesirable sigma phase when heated to temperatures between 500 and 900° C. as compared to the known allows.

Abstract: A description is given of a temperature-stable cast-iron alloy having high wear resistance at temperatures between 500 and 900° C. The alloy is characterized in that it has the following composition expressed in weight percentages: chromium: 15.0-20.0%, carbon: 1.0-2.0%, manganese: 1.5-2.0%, silicon: 0.8-1.2%, nickel: 8.0-10.0%, molybdenum: 0.8-1.2% balance iron and unavoidable metallic and non-metallic contaminants where the non-metallic contaminants comprise nitrogen, oxygen, phosphorous and sulphur. Hereby is obtained a cast-iron alloy which has a higher wear resistance and a reduced tendency to form the undesirable sigma phase when heated to temperatures between 500 and 900 ° C. as compared to the known allows.

Abstract: A description is given of a temperature-stable cast-iron alloy having high wear resistance at temperatures between 500 and 900° C. The alloy is characterized in that it has the following composition expressed in weight percentages: chromium: 15.0-20.0%, carbon: 1.0-2.0%, manganese: 0.8-1.2%, silicon: 1.2-1.5%, nickel: 1.5-2.5%, balance iron and unavoidable metallic and non-metallic contaminants where the non-metallic contaminants comprise nitrogen, oxygen, phosphorous and sulphur. Hereby is obtained a cast-iron alloy which has a higher wear resistance and a reduced tendency to form the undesirable sigma phase when heated to temperatures between 500 and 900° C. as compared to the known allows.