High-hardness silver-bearing martensite antibacterial stainless steel

The invention relates to high-hardness silver-containing martensite antibacterial stainless steel. The stainless steel comprises the following chemical components in percentage by weight: 0.8-1.2% of C, 16-18% of Cr, 1.0-3.0% of Mo, 0.1-1.0% of V, 1.0-3.0% of W, 0.7-1.2% of Al, 0.1-0.2% of Ag, 0.1-1.0% of Re, not more than 0.035% of S, not more than 0.03% of P, not more than 2.0% of other impurities and the balance of Fe. The silver-containing martensite antibacterial stainless steel disclosed by the invention has the advantages of excellent antibacterial property larger than 99.0%, largely improved hardness and wear resistance and not less than HRC57 of hardness, and meets the requirements of cutter manufacturing of household, medical and the like industries on hardness and antibacterialproperty.

Heterogeneous welding line arc cold welding process for removing chilling annealing using cast iron

Super-hard copper-containing martensite antibiotic stainless steel

The invention relates to super-hard copper-containing martensite antibiotic stainless steel. The stainless steel comprises the following chemical components by weight percent: 0.8-1.2% of C, 16-18% of Cr, 1.0-3.0% of Mo, 0.1-1.0% of V, 1.0-3.0% of W, 0.5-3.0% of Ni, 2.5-3.5% of Cu, 0.1-1.0% of Re, less than or equal to 0.035% of S, less than or equal to 0.03% of P, less than or equal to 2.0% of other impurities and the balance of Fe. The copper-containing martensite antibiotic stainless steel has good antibiotic property, and the hardness and wear resistance of the stainless steel are greatlyimproved, thereby meeting the requirement of cutters manufactured in industries such as family, medical treatment and the like on the hardness and antibiotic property of the stainless steel.

Medium and low voltage line hot-line work load switching temporary line

The utility model relates to a medium and low voltage line hot-line work load switching temporary line, comprising a switching line, two ends of the switching line are respectively connected with a switching line joint I and a switching line joint II, and the switching line joint I and the switching line joint II have the same structure; the connecting patch cord connector I comprises a fixing plate, a patch cord connecting end is arranged on the rear portion of the fixing plate, a wire lower portion fixing current-conducting plate is arranged on the upper portion of the fixing plate, the top face of the wire lower portion fixing current-conducting plate is of an arc-shaped structure, and a wire upper portion fixing current-conducting plate of a semicircular structure is arranged above the wire lower portion fixing current-conducting plate corresponding to the wire lower portion fixing current-conducting plate. An opening of the wire upper portion fixing conductive plate faces downwards ...

High-hardness silver-bearing martensite antibacterial stainless steel

Three-pass rotary drum

The invention provides a three-pass rotary drum and belongs to the field of rotary drum heating. The invention is implemented by a technical scheme that: the three-pass rotary drum comprises an outer drum, a middle drum and an inner drum, wherein the middle drum is formed by connecting a plurality of short conical drums one to end; and adjacent short conical drums are connected by annular connecting plates end to end. The invention provides the technical scheme of smartly designing the structure of the middle drum, forming the middle drum by using the plurality of short conical drums and processing and manufacturing the equipment to make a large-tonnage three-pass rotary drum of a required length or processing capacity according to requirements; the structure of the three-pass rotary drum is simple; the installation and use are convenient; and more importantly, the large-size equipment can be realized according to requirements and the structure is compact.

Power transmission and distribution line power failure operation ground wire connecting device

The utility model relates to a power transmission and distribution line power failure operation ground wire connecting device, which comprises an inverted U-shaped ground wire connecting clamp, two conductive clamping plates and two torsion springs are arranged in the inverted U-shaped ground wire connecting clamp, the torsion springs are respectively matched with the corresponding conductive clamping plates, and under the action of the torsion springs, the ground wire connecting clamp is connected with the inverted U-shaped ground wire connecting clamp. The top of the conductive clamping plate is in contact with two sides of an interval fixing block arranged at the top of the inverted-U-shaped ground wire connecting clamp, the top of the conductive clamping plate is further connected with one end of a conductive silver-plated wire, and the other end of the conductive silver-plated wire is fixed to the inverted-U-shaped ground wire connecting clamp. A mounting rack is arranged on the inverted ...

Three-pass rotary drum

The invention provides a three-pass rotary drum and belongs to the field of rotary drum heating. The invention is implemented by a technical scheme that: the three-pass rotary drum comprises an outer drum, a middle drum and an inner drum, wherein the middle drum is formed by connecting a plurality of short conical drums one to end with the same cone vertex diameter; and adjacent short conical drums are connected by annular connecting plates end to end. The invention provides the technical scheme of smartly designing the structure of the middle drum, forming the middle drum by using the plurality of short conical drums and processing and manufacturing the equipment to make a large-tonnage three-pass rotary drum of a required length or processing capacity according to requirements; the structure of the three-pass rotary drum is simple; the installation and use are convenient; and more importantly, the large-size equipment can be realized according to requirements and the structure is compact ...

Assembling auxiliary device for anti-freezing bolt production

An assembly auxiliary device for anti-freezing bolt production relates to the technical field of assembly of anti-freezing bolts and comprises an assembly clamping box and an assembly positioning box which are vertically arranged, the length, width and height of the assembly clamping box are the same as those of the assembly positioning box, and the assembly positioning box is slidably arranged on one side of the assembly clamping box; a vertical arc clamping opening is formed in the inner side wall, opposite to the assembly positioning box, of the assembly clamping box, and a vertical square mounting opening is formed in the inner side wall, opposite to the assembly clamping box, of the assembly positioning box; four strip-shaped limiting plates are rotationally arranged on the side wall, close to the edge of the arc clamping opening, of the assembly clamping box; a circular supporting bridge plate is fixedly connected to the inner circumferential wall, close to the lower end, of the arc ...

Grey cast iron welding process and self-fluxing homogeneous welding powder

Triethylamine cold-box core making tail gas treatment and amine recovery method, and apparatus thereof

The invention discloses a triethylamine cold-box core making tail gas treatment and amine recovery method, and an apparatus thereof. The method comprises the steps of adsorption, desorption and condensation, and the apparatus comprises an adsorption unit, a desorption unit and a condensation recovery unit. The method and the apparatus have the following advantages: triethylamine in a triethylamine cold-box core making tail gas can be effectively removed, so the tail gas reaches the emission standard in China, and the environmental pollution is reduced; and triethylamine is recycled, so the triethylamine pollution is eliminated, and the triethylamine consumption is reduced.

Heating furnace for sand reclamation

The invention relates to a heating furnace for sand reclamation, belonging to the field of a sand reclaiming plant used in casting production. The heating furnace for sand reclamation comprises a furnace body with a sand inlet and a sand outlet, wherein at least two layers of clapboards are arranged in the furnace body, sand leaking through holes are formed on each layer of clapboard, and the sand leaking through holes on adjacent clapboards are arranged alternately. By adopting the structural design of the invention, after a certain amount of sand is accumulated at the non-through hole positions of each clapboard, a plurality of sand piles with a certain taper are formed, and then, sand slides off in a showering way along the sand piles and falls off to the next layer of clapboard through the sand leaking through holes; and in a similar way, the sand gradually reaches the clapboard at the bottommost layer and is discharged through the sand outlet, and the sand is heated in the process.