Novel Powder Metallurgy Compacts with Internal Structures

之前开发了一种新的制造技术，并申请了实用新型专利，该技术可以仅用两步就能生产出完全封闭在金属中的空心部件。该技术利用粉末冶金压制烧结技术，将金属粉末致密成一个完全封装内部结构的固体体。这些内部结构通常由含有石蜡芯的金属壳组成。首先，将金属粉末压紧（“压实”）在包含软蜡填充核心的固体金属外壳周围，形成包含内部结构的金属压块或部件。在特定条件下对压坯进行后续加热（“烧结”），使石蜡从压坯中熔化，从而产生空心金属部件。

A novel manufacturing technology was previously developed, with a utility patent applied for, which is capable of producing a hollow component in only two steps that is completely enclosed in metal. The technology leverages the powder metallurgy press-and-sinter technique to densify metal powder into a solid body completely encapsulating an internal structure. These internal structures most often are composed of a metallic shell containing a paraffin wax core. Firstly, metal powder is pressed ("compacted") around a solid metal shell containing a soft wax-filled core to form a metal compact or part containing an internal structure. Subsequent heating ("sintering") of the compact at particular conditions allows for the paraffin to melt out of the compact, thus producing a hollow metal part.