The subject disclosure relates to a process for producing electrically conductive surfaces on insulating substrates which comprises use of a laser beam to melt tracks onto said substrates into which conductive particles are simultaneously impinged, resulting thereby in the formation of computer controlled patterns designed according to tracings characteristic of those used in the manufacture of electric/electronic circuit boards.

Laser process for producing electrically conductive surfaces on insulators

A coating of at least 71% by weight molybdenum as applied to the steel base body of a worm or screw for a plastifier or extruder for plastic materials and synthetic resin by introducing the coating material into a laser beam and directing the thus melted coating material and the laser beam onto the surface of the worm or screw to be coated. The melt-metallurgical bond is formed between the coating without distortion or crack formation of the base body.

Method of generating a wear-reducing layer on a plastifying worm or screw

The invention relates to a method for producing a surface-alloyed cylindrical, partially cylindrical or hollow cylindrical component A locally defined melting bath having a warming-up and a melting-on front (20), a dissolving zone (21) and a solidification front (22) is produced in the impact zone of the energy beam The invention also relates to a device for carrying out said method The inventive device consists of a clamping device (1) for workpieces A workpiece is oriented and clamped on said clamping device by means of index bores and/or treatment surfaces A powder supply device (5) and a beam emanating from a beam head (4) is oriented towards the surface of said workpiece, whereby said beam can be focussed

Method for producing a surface-alloyed cylindrical, partially cylindrical or hollow cylindrical component and a device for carrying out said method

The invention includes methods of forming a metallic coating (14) on a substrate (10) which contains silicon. A metallic glass layer (14) is formed over a silicon surface of the substrate (10). The invention includes methods of protecting a silicon substrate. The substrate ( 10) is provided within a deposition chamber along with a deposition target. Material from the deposition target is deposited over at least a portion of the silicon substrate (10) to form a protective layer (14) or structure which contains metallic glass. The metallic glass comprises iron and one or more of B, Si, P and C. The invention includes structures which have a substrate (10) containing silicon and a metallic layer (14) over the substrate (10). The metallic layer (14) contains less than or equal to about 2 weight % carbon and has a hardness of at least 9.2 Gpa. The metallic layer (14) can have an amorphous microstructure or can be vitrified to have a nanocrystalline microstructure.

Metallic coatings on silicon substrates, and methods of forming metallic coatings on silicon substrates

PURPOSE: To lengthen the life of a mold and improve cutting processing accuracy so as to prevent the generation of crack or break in a cut product by cutting amorphous alloy in a press method after heating the cut part of the alloy or its vicinity so as to lower the hardness of its cut part. CONSTITUTION: A punch 4 is elevated and the upper face of its periphery 4A is elevated up to a position higher than the mold face 12A position of a pressing mold 12. Then, the pressing mold 12 is held up with an amorphous alloy strip 1 between to a punch 4 and a spring 13 is contracted. In this way, this strip 1 is put between the punch 4 and the pressing mold 12 while being pressured by the pressing force of the spring 13 and the cutting part of the strip 1 is heated to about 300°C by heaters 4h, 12h through the punch 4 and the pressing mold 12 so as to lower its hardness. After this heating, the rum of a press is lowered and a die 11 is pushed down and the amorphous alloy strip 1 is punched by the engagement of the die 11 and the punch 4. COPYRIGHT: (C)1988,JPO&Japio

Method and device for cutting amorphous alloy

PURPOSE:To provide corrosion resistance, abrasion resistance, etc. to a steel pipe by melting the local part of the inside circumferential surface of the steel pipe by a laser and meltsticking an amorphous alloy thereby forming amorphous alloy layers successively in the longitudinal direction of the steel pipe. CONSTITUTION:The laser from a laser head 10 is changed of direction with a mirror 1, and is focused at the inside circumferential surface of a steel pipe 1 with a lens 12, thereby melting the local surface thereof. On the other hand, an inert gas is fed through a supply pipe 13 to suck the amorphous alloy powder in a hopper 14 and to eject the same through a nozzle 15, thereby spraying the powder on the inside circumferential surface of the pipe 1 melted by the laser. Since the pipe 1 and a revolving shaft 5 revolve at a high speed in opposite directions, the molten part moves quickly. The locally molten parts are moved relatively in an axial direction at every prescribed pitch at every one relative rotation by a feeder 9 and therefore the quickly cooled structure, that is, amorphous alloy layers are formed successively in part or the whole of the length of the inside circumferential surface of the steel pipe 1.

Formation of amorphous inside circumferential surface of steel pipe

PURPOSE:To improve cooling effect considerably with a wide contact area by forming the circumferential part of at least one cooling body into easy to deform and restore construction in plural rotary cooling bodies which revolve under pressure contact with each other at part of the surfaces of the circumference. CONSTITUTION:A rotary cooling body 1 of elastic construction consisting of a surface layer consisting of, for example, copper or the like having good heat conductivity and prescribed strength, an elastic body 4 consisting of, for example, deformable and restorable nylon rubber or the like on the lower side thereof, and a shaft core body 6 is formed. A rotary cooling body 7 and a temp. control roll 8 of rigid construction are brought in press contact with the body 1. A molten material 11 charged into a vessel 10 is heated with a heating means 12, and is ejected continuously onto the cooling body surfaces near the press contact surface areas of the two bodies 1, 7 through a nozzle 13 provided in the lowermost part of the vessel 10, whereby it is quickly cooled and solidified and is released as a thin strip shaped material 14. Thereby, the cooling distance of the material 11 is made long, and a metallic material 14 of a thin strip shape having high surface accuracy and plate thickness accuracy is obtained.

Method and device for production of quick cooling material for melt

Method of cutting amorphous metal

PURPOSE:To coat amorphous metal firmly on a steel material by treating the surface of said material beforehand with metal which produces atomically bound structure easily with amorphous metal and cladding this amorphous metal on the steel material then cooling the same quickly. CONSTITUTION:The surface of a steel material is treated with metal which produces atomically bound structure easily with Fe-based amorphous metal, for example an alloy consisting of combinations of Al, Si, B, Cr. The steel material 2'c treated of the surface in this way is passed through the inside of a molten metal tank 8 by means of pinch rolls 12, 12'. The metal to be clad is contained as molten metal in an amorphous state in high frequency furnace 6 and is pressed by a non-oxidative gas, whereby it is supplied through a connecting pipe 7 into the tank 8. The material 2'c claded with the amorphous metal passes through a nozzle 11 and is quickly cooled with twin rolls 13 for quick cooling, thence it is coiled as a coil 2''c. The rate of cooling is required to be about 10 -10 deg.C/sec.

Method for cladding amorphous metal to steel material

PURPOSE:To make the production of solution quenched material moldings of arbitrary shapes on an industral scale with good accuracy by pressurizing and cooling the liquid drops of molten material from both sides with two rotary cooling bodies CONSTITUTION:Material is melted in a vessel 18 with a heater 21, and rotary cooling bodies 7, 8 and the disc 19 of a liquid drop injector are rotated synchronously When the liquid drops 2 of the molten material are injected intermittently downward on a line l, the drops 2 enter the inside of hollow dies just before the hollow dies are closed by the surfaces of the cooling body 13 of a rotary cooling body 8 The liquid drops 2 entering the inside of the hollow dies are sealed immediately in the hollow dies by the rotation of the bodies 7, 8, and are pressurized and quickly cooled from both sides, whereby they are molded to a solution quenched material of a prescribed shape The moldings 9 are removed from the hollow dies successively with a removing device 24 The hollow molds discharged of the moldings 9 go through a liquid injecting nozzle 25, a coolant injecting nozzle 26, etc to be ready for the teeming of the next liquid drops 2

Production of molding of solution quenched material

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