A medical device and a method and process for at least partially forming a medical device, which medical device has improved physical properties.

A medical device and a method and process for at least partially forming a medical device, which medical device has improved physical properties.

A steel filament for twisting into a steel cord for the reinforcement of rubber articles, which contains a steel substrate that is coated with a coating comprising brass. The coating is different in that the amount of iron at the surface is distinctively higher than that prior steel filaments. The coating has an average iron content of 4 or more atomic percent compared to the total of iron, zinc and copper atoms in the layer extending from the surface to a depth of 3 nanometer below the surface. The steel filaments show an improved adhesion retention under hot and humid conditions and in organic cobalt compound containing rubbers as well as rubbers that are substantially free of cobalt. The lifetime of the rubber article is extended.

The disclosure relates to a method for manufacturing a biocompatible wire, a biocompatible wire comprising a biocompatible metallic material and a medical device comprising such wire. The method for manufacturing a biocompatible wire comprises providing a workpiece of a biocompatible metallic material, cold working the workpiece into a wire, and annealing the wire, wherein a cold work percentage is 97 to 99%, wherein the cold working is a drawing with a die reduction per pass ratio in a range of 6 to 40%, and wherein the annealing is done in a range of 850 to 1100° C.

A medical device that is at least partially formed of a refractory metal alloy, and a method for inserting the medical device in a patient.

A medical device that is at least partially formed of a refractory metal alloy, and a method for inserting the medical device in a patient.

A lumen stent preform is provided using a plasma nitriding technology, a preparation method thereof, a method for preparing a lumen stent by using the preform, and a lumen stent obtained according to the method. The preform is manufactured by using pure iron or an iron alloy containing no strong nitrogen compound, has a hardness of 160-250HV0.05/10, and has a microstructure that is a deformed structure having a grain size scale greater than or equal to 9 or a deformed structure after cold machining. Alternatively, the preform is an iron alloy containing a strong nitrogen compound, and has a microstructure that is a deformed structure having a grain size scale greater than or equal to 9 or a deformed structure after cold machining. The lumen stem preform meets the requirements of a conventional stent for radial strength and plasticity, so that plasma nitriding is applicable to commercial preparation of a lumen stent.

A device for cleaning a vent of a first forging die suitable for receiving, between the first die and a second die, a metal blank to be shaped in order to produce a metal part, the device for cleaning including a pump for injecting an aqueous solution, suitable for injecting the aqueous solution into the vent, an ultrasound generator, suitable for generating ultrasound waves within the vent, an air intake suitable for ensuring a venting of the vent, and a valve system for alternately controlling at least the injection of aqueous solution and ultrasound and the venting of the vent.

To provide a chassis for a small electronic device that can be formed efficiently by drawing work with low cost, is hard to cause forming failure, and causes no damage on the surface thereof on forming to provide an excellent appearance. The rolled aluminum alloy laminated sheet material is for forming a chassis for a small electronic device by drawing work, and contains a rolled aluminum alloy sheet material having a 0.2% proof stress of 200 MPa or more, and a covering material laminated at least one surface of both surfaces of the rolled aluminum alloy sheet material, and the covering material contains any one of a synthetic resin film, and a laminated material containing a metal foil having synthetic resin films laminated on both surfaces thereof. The rolled aluminum alloy sheet material may have a fibrous crystalline structure extending in a direction perpendicular to a thickness direction thereof.

A processing method of NPR steel rebar rod is disclosed. The NPR steel rebar is cold processed and has a yield strength of 800˜950 MPa, a tensile strength of 900˜1100 MPa, and a percentage elongation at maximum force of not less than 10˜40%. The processing method comprises the following steps: a I-shaped placing step L20, an uncoiling step L30, a flattening step L40, a butt welding step L50, a sandblasting step L60, a straightening step L70, a pointing step L80, a hydraulic head-pushing step L90, a cold drawn spiral ribbing step L10, a straight forward continuous wire drawing and traction step L11, a pre-straightening step L12, a fine straightening step L13, and a cutting-off step L14. The processing method can meet the automatic intelligent production requirements of NPR steel rebar, cold rolled spiral NPR steel rebar, and pre-stressed NPR steel rebar.