A hard
alloy sintering process comprises the following steps: filling moulded workpiece in a
sintering chamber, starting
vacuum pump to vacuumize and starting glue pump, raising temperature to 330 to 350 DEG C, making
adhesive gasify, at the same time, pumping the gasified
adhesive gas from
sintering chamber by glue pump, and then, continuously raising temperature to 630 to 660 DEG C, making furnace-residual
adhesive gas crack, after finishing degumming, continuously vacuumizing to 140 to 160 Pa and raising temperature to 1410 to 1480 DEG C, at last finishing sintering. The degumming and
vacuum sintering integrated furnace of the invention comprises: a furnace, a heat preservation box, a sintering chamber, an adhesive tank, a glue pump and a
vacuum pump. The invention has
rational design, simple device structure, convenient operation and integration of degumming and
vacuum sintering for effectively improving the product sintering quality, shortening sintering period, saving energy resource and reducing product sintering cost. The furnace is a novel product fit for replacing the current hard
alloy sintering device because of wide sintering product range, low device cost and safe production process.