50results about How to "Stress resistance" patented technology

The pouring tube (1) comprising a tubular section (3) with a pouring channel (6) and a top plate (2) with an aperture has flat thrust surfaces (5) beneath the plate that form an angle of 20 - 80 degrees, and preferably close to 45 degrees, with axis (7) of the pouring channel. The pouring tube is set in a tube feed and changer with springs applying a thrust force at 30 - 60 degrees, and preferably 45 degrees to the tube channel's axis.

A railway vehicle, comprising a roof (2) which is formed with an opening (16) communicating with a passenger compartment (6) of the vehicle; a movable air conditioner (10) mounted over the roof (2). The air conditioner (10) comprises an air outlet (14) arranged oppositely to the opening (16). The vehicle also comprises a joining device (18) placed between the air outlet (14) and the opening (16).The joining device is arranged to allow air hermetically flow to the passenger compartment (6) through the opening (16) from the air outlet (14), and comprises a flexible body arranged to guarantee air to flow when roof (2) and the air outlet (14) of the air conditioner (10) are movable relative to each other.

The invention discloses a multi-layer composite runner brick and a production method thereof. The multi-layer composite runner brick comprises a brick base body, wherein the brick base body is provided with a steel liquid flow passage; a combining layer and a working layer are sequentially compounded onto the surface of the steel liquid flow passage; the brick base body is prepared from main materials including flint clay, pyrophyllite, third-level alumina clinker and clay, and a small amount of added sillimanite, andalusite and potassium feldspar; the working layer is prepared from main materials including corundum, mullite and alpha-Al2O3 micropowder, and a small amount of added sillimanite, silicon micropowder, clay and andalusite; the raw materials of the working layer are compounded into slurry, the slurry is sprayed onto the surface of the steel liquid flow passage and is fired, and the working layer reacts with a base body layer to form a mullite-based combining layer, thereby forming a whole; in a steel casting process, the working layer, the combining layer and the base body layer are closely combined together, so as to avoid the separation of the working layer. The multi-layer composite runner brick has the advantages that the cost is low, the high-temperature property is good, the anti-scouring erosion capability is strong, the market competition advantage is obvious, the thickness of the working layer can be adjusted through design, and the multi-layer composite runner brick is suitable for smelting different types of special steel.