Abstract: In a diaphragm pump, which is provided with at least one diaphragm (1), which separates a delivery chamber (4) from a pressure chamber (5) filled with an hydraulic fluid and is clmaped at its edge between the pump body (2) and a pump cover (3), and with an hydraulic diaphragm drive in the form of an oscillating displacement piston (6), which is displaceable in the pump body (2) between the pressure chamber (5) and a storage chamber (7) for the hydraulic fluid, a method as well as an arrangement for starting under load is provided. For this purpose on the pump drive side between the pressure chamber (5) and the storage chamber (7) a connection channel (20) is provided.

Abstract: A process for making a homogeneous solidified alloy having at least one component with a comparatively high vapor pressure, in which the alloy components are enclosed in the form of a homogeneous melt in a sealed ampoule and cooled therein, the volume free of melt in said ampoule being during the entire cooling step of the melt between 0.001 and 1 cc, and the ratio of the volume of the ampoule free of melt and that of the ampoule filled with melt is not larger than 1:5.