36results about How to "Reliable quality control" patented technology

The invention discloses a multifunctional split bolt and application thereof. Steel plates are penetratingly mounted at two ends of a bolt bar. The bolt bar is fixedly connected one steel plate by means of welding. A pair of positioning clamps for fixing rebar positions is welded on the bolt bar between the two steel plates. Fastening nuts are fitted at two ends of the bolt bar. When the split bolt is used in a composite structure with building prior to pouring, construction speed is increased, construction efficiency is improved, bonding degree and tightness of interfaces of different materials are enhanced, overall performance of a structure is improved, usability of the structure is more reliable, maintenance is reduced, service life of a project is prolonged, accuracy and reliability of rebar protective layer control are higher, soakage resistance and erosion resistance of concrete is guaranteed to be more reliable, formwork mounting and strengthening are more convenient and faster, influence of building verticality and evenness can be eliminated, construction accuracy is higher, common signal side formwork lateral supports can be reduced, construction difficulty can be lowered, cost is saved, and the split bolt is suitable for double-side formwork construction and embedded part positioning mounting of walls and board components.

A method of inspecting the profile of the connection zone between the cylindrical portion and the taper of a roller for a turbomachine roller bearing. The surface profile is geometrically defined by a first zone corresponding to the taper of the roller, a second zone corresponding to the connection between the cylindrical portion and the taper, and a third zone corresponding to the cylindrical portion of the roller. The method consists in taking a measurement of the surface profile of the roller; on the basis of a calculation of the first derivative of the measured profile, in calculating straight line segments for each of the geometrical zones of the roller, where said straight line segments model the first derivative of the measured profile; in calculating the radii of curvature of the surface profile of the roller by taking the first derivative of the straight line segments; and in comparing the calculated radii of curvature with predefined threshold values in order to verify continuity thereof.

The invention relates to the technical field of non-woven fabrics, in particular to manufacturing equipment for the non-woven fabrics. The equipment is controlled by the program of a programmable logic controller (PLC) and comprises a feeding unit, a screw extruder, an extension box body, an airflow drafting unit, a cooling side-blowing unit, a wet forming unit, a rolling mill and a winding unit,wherein the screw extruder is used for extruding raw materials by heating; a filter is arranged at the extrusion port of the screw extruder; the input end of the extension box body is connected to the filter through at least two counters which are connected in parallel; the airflow drafting unit is in vertical butt joint with the output end of the extension box body; a single body drawn by the extension box body is intertwined and staggered by the airflow drafting unit; the cooling side-blowing unit is arranged on the side of a single body drafting region between the extension box body and the airflow drafting unit; and a regulating valve capable of regulating air quantity is arranged on an air channel of the cooling side-blowing unit. The equipment can produce 3.2-meter wide non-woven fabrics, meets new state requirements of non-woven fabric industries and has a simple, scientific and reasonable structure.

A method and device for testing sensors to be applied on a patient's skin for detection of liquid or moisture are described, in particular for monitoring vascular access in an extracorporeal blood treatment, in which a patient's blood is carried away from the patient via an arterial line and is fed to the patient via a venous line. A method for producing sensors to be applied on a patient's skin for detection of liquid or moisture is also described. The method and device according to the present invention are based on the testing of one or more moisture sensors which are taken from current production. The method includes providing a large number of twists of the moisture sensor applied onto a torsion body, the mechanical stresses thus recreating the stresses that can occur in practice when the moisture sensor is applied or stuck onto the patient's skin or forearm.

A method of inspecting the profile of the connection zone between the cylindrical portion and the taper of a turbomachine part, the surface profile of the part being geometrically defined by at least one first zone corresponding to the taper of the part, at least one second zone corresponding to the connection between the cylindrical portion and the taper of the part, and a third zone corresponding to the cylindrical portion of the part, the method consisting in measuring the surface profile of the part; from the measured surface profile, modeling the contact pressures that apply to the surface of the part for each of its zones; and comparing the contact pressures modeled for the second zone of the surface profile of the part with predefined threshold values.

This invention is related to a method and a moulding device (100) for making a cast of a surface. The moulding device comprises a first moulding chamber part (30), which is adapted to be placed adjacent the surface and to form a moulding chamber (16) together with the surface. Moulding material can be introduced into the moulding chamber via an inlet (9), and one or more outlets (20, 21) serves to drain the moulding chamber from any entrapped liquid or gas. Further, at least one test piece (17) with surface defects, having well-known characteristics is provided in the moulding device for making at least one imprint on said cast surface. Hereby, a quality test of said cast can be performed.

In a method for operating a drive unit, for at least one operating quantity of the drive unit, a deviation from an initial value is represented by an adaptation value, which adaptation value is determined at various times. In an extreme value storage unit, a first adaptation value, determined at a first point in time, is stored. A second adaptation value, determined at a second point in time after the first point in time, is compared with the first adaptation value stored in the extreme value storage unit to determine whether the second adaptation value exceeds the first adaptation value in a prespecified direction. In this case, the extreme value storage unit is overwritten by the second adaptation value.

The invention discloses a method for detecting related substances of pramipexole dihydrochloride sustained-release tablets, which adopts an organic diluent and a normal-phase chromatographic system, so that an impurity CD10503 can be stable and not decomposed in the detection process, the accurate quantitative detection of the impurity CD10503 can be achieved, and the quality of the pramipexole dihydrochloride sustained-release tablet can be better controlled.

The invention discloses an active type underground efficient water suction and drainage blind tube system. The active type underground efficient water suction and drainage blind tube system comprisesa water collecting inspection well, active type efficient water suction and drainage tube assemblies and a flexible joint, wherein the two sides of the water collecting inspection well are connected with the active type efficient water suction and drainage tube assemblies; the third surface of the water collecting inspection well is connected with an outlet tube; the flexible joint is used for connecting the two sections of the active type efficient water suction and drainage tube assemblies; each active type efficient water suction and drainage tube assembly consists of a base, a water drainage base, and an active type water suction plate, wherein the base, the water drainage tube and the active type water suction plate are connected through a heat-melting way, the base, the water drainage tube and the active type water suction plate are made of a high-strength engineering PVC material, so that anti-pressure ability and plastic mechanical properties are very good; and the flexible joint can be suitable for uneven local settling of various foundations, and can realize small-angle rotation in any direction. Active type water suction plates delicately improve single passive water seepage to active water drainage, so that water drainage efficiency is greatly improved.