For the old heat pump (heat transfer oil pump), the reason for its stagnation mostly diesel is not clean, there is mechanical impurities between the plunger and the plug sleeve, or plunger and plunger sleeve surface is pulled, or the top corner of the plunger is bump Glitches caused. For the new hot oil pump, the reasons for its stagnation are the following: 1) heat pump storage is not good, lax packaging, moisture-proof rust-proof material missing or damaged, tubing joints, dust cap damage or loss, will also have stuck phenomenon. 2) At present, some hot oil pump manufacturers and maintenance units in the commissioning of hot oil pump, do not pay attention to the selection of high-quality diesel, resulting in the actual diesel fuel control the larger, higher acidity. After this debugging, in the heat pump precision coupling with the surface adhesion of a layer of residual film. If the hot oil pump is stored for too long, this layer of oil film will gradually generate organic sediments and glue, will have a phenomenon of arresting after installed.
Wood Working Dril
The three-point wood drill is a variant of the twist drill, because the conventional twist drill is easy to deviate when drilling on a flat processing surface. When drilling metal, a pilot hole is usually drilled to locate the Drill Bit. But when doing woodworking, we can have a more convenient choice. The straight tip of the three-point woodworking drill is nailed into the wood like an awl to ensure that the drill will not slip.
Wood Working Bits are cutting tools used to remove material to create different kinds of holes in wood materials. In order to create holes drill bits are usually attached to a drill, which powers them to cut through the objects.
Wood working drill Machining accuracy is good, and drilling out of the hole cleanliness is good, small burr,
Wood Working Dril,Wood Drill,Cutting Tool,Metal Cutting
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