Abstract: The disclosure provides a method and device for preparing slightly acidic electrolyzed water with a controllable and stable concentration. According to the method, a solution addition velocity of a first solution addition device is adjusted according to a difference between a detected voltage Udetected and a control voltage Ucontrol in an electrolytic cell, so that the first solution addition device adds an electrolyte stock solution to the electrolytic cell in real time, thereby preparing the slightly acidic electrolyzed water with a controllable and stable concentration. The device includes an electrolyte stock solution storage, an electrolytic cell and a first mixer connected sequentially. A first solution addition device is connected in series between the electrolyte stock solution storage and the electrolytic cell. The disclosure overcomes the defects of uncontrollable and unstable concentration in the preparation of present slightly acidic electrolyzed water.

Abstract: Aluminum alloy components may include a composition including concentrations of, in wt. %, chromium of greater than or equal 0 to less than or equal 0.3, manganese of greater than or equal 0 to less than or equal 0.4, silicon of greater than or equal 6.5 to less than or equal 9.5, magnesium of greater than or equal 0 to less than or equal 0.35, iron of greater than or equal 0.2 to less than or equal 0.4, zinc of greater than or equal 0 to less than or equal 0.15, copper of greater than or equal 0 to less than or equal 0.5, titanium of greater than or equal 0 to less than or equal 0.2, strontium of greater than or equal 0 parts per million to less than or equal 200 parts per million, and a balance being aluminum.

Abstract: A method of manufacturing a pin (46) for a o mold (28) includes forming the pin (46) to include a substantially uniform initial hardness throughout the entire structure of the formed pin (46). The formed pin (46) is then processed with a hardening process, such that the processed pin(46) exhibits a hardness defining a hardness gradient that gradually increases from the initial hardness at a central interior region (56) of the pin (46) to an increased surface hardness at an exterior surface (60) of the pin (46). After processing the pin (46) with the hardening process, a coating (64) maybe deposited onto the exterior surface (60) of the pin (46) with a physical vapor deposition process. The coating (64) exhibits a hardness that is greater than the hardness of the increased surface hardness of the exterior surface (60) of the pin (46). The pin (46) may include, for example, a core pin, a squeeze pin, or an ejector pin.