The invention relates to a mountain-climbing hook and a processing technology thereof. The mountain-climbing hook comprises a movable rod and a hook body with an articulation hole, wherein the outer peripheral surface of the hook body is encircled by an inner arc-shaped surface, an outer arc-shaped surface and two flat planes; the cross section abutting against the bottom of a gap and the cross section at the lower end of a mounting plate are intersected at a point A; when the movable rod is rotated, the upper end of the movable rod and the inner arc-shaped surface are intersected at a point B, the point A and the point B are connected to form a straight line Z, the shortest straight-line distance between a central point C of the cross section of the articulation hole and the outer arc-shaped surface is L3, and the shortest straight-line distance between the point C and the straight line Z is L4. The processing technology of the mountain-climbing hook is specifically as follows: smelting a well prepared alloy into an aluminum solution, degassing, refining, standing, skimming, and then casting into an aluminum alloy round cast bar; performing extrusion forming in a reverse direction; and performing heat treatment on a cast piece to obtain the mountain-climbing hook. The mountain-climbing hook provided by the invention has the advantages of relatively high tensile strength, corrosion resistance and fracture toughness, as well as long service life.

Mountain-climbing hook and processing technology thereof

PROBLEM TO BE SOLVED: To remove contaminants from green coffee beans while suppressing quality deterioration.SOLUTION: When green coffee beans are treated, a removal step, a washing step, and a drying step are performed. In the removal step, a powder removal device 10 removes fine powders adhering to dried unroasted green coffee beans. In the washing step, while stirring the green coffee beans, a washing device 20 washes them. In the drying step, a drying device 30 dewaters the green coffee beans to adjust the total of internal moisture and surface moisture to 20 wt.% or less. Subsequently, a selection device 40 selects only non-defective green coffee beans, and a roasting device 50 roasts the green coffee beans.SELECTED DRAWING: Figure 1

Coffee bean treatment method, coffee bean production method, and coffee bean treatment system

PURPOSE:To efficiently clean and grade coffee beans by vibrating a hermetically sealable trough stretching a screen having a mesh smaller than the grain diameters of small stones to be separated, feeding coffee beans thereon, fluidizing the coffee beans by air flow, sucking the coffee beans to separate the coffee beans from the small stones CONSTITUTION:A hermetically sealable trough stretching a punching plate 38 consisting of a screen having a smaller mesh than the grain diameters of small stones S to be separated is vibrated and a feet port 35 for receiving coffee beans Q to be cleaned and graded is provided in upper steam end part of this trough and coffee beans Q are fed from this feed port 35 and air flow from the lower part of the punching plate 38 toward the upper part is formed by air feed dust 13 to keep coffee beans Q on the screen of the punching plate 38 in fluidizing state and the coffee beans Q separated on the upper layer is sucked into a sucking duct 33 and small stones S left on the screen are discharged from a discharge port 36 provided in downstream end part of the trough 31 to the outside to efficiently clean and grade the coffee beans Q

Cleaning and grading machine of coffee bean

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Cleaning and grading machine of coffee bean