摘要:
An object is to provide a brazing construction and a method for brazing for an abradable sealing material wherein a decrease in abradability does not occur. A stop-off area that prevents infiltration of a brazing filler metal is provided on a non-brazed side of a honey comb sheet, that is an abradable sealing material, with a predetermined depth through the sequential steps of: masking an area to a predetermined depth on a brazing side by pressing a brazing side of the honeycomb sheet into a masking sheet; applying a stop-off agent to the honeycomb sheet in this condition to form a film of the stop-off agent on a region outside of the masked region; removing the masking sheet; placing a face to be brazed of the honeycomb sheet onto a sheet of brazing filler metal which is positioned on a base material, so as to be pressed in; and brazing by placing the honeycomb sheet and the base material into a heating furnace.
摘要:
The present invention provides a gas turbine in which a proper clearance is kept between a rotor blade and a shroud for a long period of time from the operation start, so that damage to the rotor blade is less liable to occur. In a turbine portion of the gas turbine in accordance with the present invention, the rotor blade and the shroud face each other. At the tip end of the rotor blade is formed an abrasive layer, and on the inner peripheral surface of the shroud is formed a heat insulating layer. The abrasive layer is formed of a matrix and many abrasive particles dispersed in the matrix. The abrasive particles include protruding particles protruding from the matrix and embedded particles embedded in the matrix. In initial sliding of the rotor blade and the shroud at the early stage of operation, the inner peripheral surface of the shroud is ground by the protruding particles. After the protruding particles have disappeared, the inner peripheral surface of the shroud is ground by the embedded particles.
摘要:
The present invention is a thermal barrier coating method to form a thermal barrier coating by spray coating over the surface of a component where cooling holes are made. The thermal barrier coating is formed by spray coating after masking pins, which do not protrude above the surface of the component, are inserted into the cooling holes or masking pins protruding above the surface of the component are inserted and get shrunk due to heat while spray coating, obtaining the protruding amount equal to or less than the thickness of the thermal barrier coating after shrinkage, which characterizes the method. By way of this method, a thermal barrier coating can be formed all over the surface without clogging the cooling holes.
摘要:
A memory card is to be inserted into an electronic device so as to add a memory function. The memory card comprises a parent card and a child card, the child card including a semiconductor memory element and a lead as an external terminal of the memory element. The parent card includes a child card receiving portion and a child card insert port for inserting the child card into the child card receiving portion through the child card insert port, and a contact to be contacted with the lead of the child card within the child card receiving portion. A contact opening/closing slide plate is provided for causing a contacting portion of the contact to be shifted to a position in which it can contact with the lead while moving in the child card insert direction pushed by the child card. The parent card also includes a connector element for contacting with the electronic device.
摘要:
A memory card comprises a flash memory for storing data, in which defective block data indicating defective one of memory blocks constituting the flash memory is stored in advance, and an attribute memory for storing attribute data of the memory card, wherein the defective block data is stored in a blank area of the attribute memory so as to assure that the defective block data is regenerated in the flash memory in a case where the defective block data on the flash memory is erased.
摘要:
For determining 3-deoxyglucosone derivatives which are intermediate metabolites of the Maillard reaction in body fluids such as blood, urine, serum, plasma and the like in gas chromatography/mass spectrometry, .sup.13 C-labelled compounds or .sup.14 C-labelled compounds are useful as an internal standard substance. More specifically, 3-deoxyglucosone derivatives having the formula (I): ##STR1## wherein *C is .sup.13 C or .sup.14 C, X is O or N--OR wherein R is Me, Et or H, and Y is SiMe.sub.3 or SiMe.sub.2 tBu, and their production are provided. The measurement of 3-deoxyglucosone derivatives is useful in diagnosing diseases such as diabetes and diseases complicated with diabetes, including diabetic nephrosis, various renal disorders, renal insufficiency, metabolic diseases of carbohydrate and the like.
摘要:
Disclosed is a pharmaceutical composition containing p-aminobenzoic acid-N-D-xyloside or a pharmaceutically a acceptable salt thereof as an active ingredient.