Provided is a titanium filter for syringes and its manufacturing method, more particularly, a titanium filter for syringes which has an improved filtering power and high safety and its manufacturing method. The titanium filter for syringes comprises: a first body having a hollow hole formed on the inner side thereof; and a second body configured to extend in the longitudinal direction of the first body and to cover one side of the hollow hole, wherein the first body and the second body are composed of titanium powders.

Disclosed are a powder sintered porous metal with better comprehensive properties, especially with good corrosion resistance to hydrofluoric acid, and a filter element using same. The powder sintered porous metal of the present invention has a porosity of 25-60%, an average pore diameter of 0.5-50 m and a weight loss rate of at most 1% after being immersed into a hydrofluoric acid solution with a mass fraction of 5% at room temperature for 20 days; and the powder sintered metal porous body consists of Cu accounting for 23-40 wt %, Si accounting for 0-5% and the balance of Ni, based on the weight of the powder sintered metal porous body. The powder sintered porous metal of the present invention has good mechanical properties and machinability, and excellent corrosion resistance in acid mediums, especially in hydrofluoric acid mediums. In particular surprisingly, when Cu and Ni are introduced into the powder sintered porous metal by Cu element powders and Ni element powders doped in the raw material powders, the powder sintered porous metal has significantly improved permeability and backflushing regeneration property.

A measurement system includes an atomizer, an impactor, a particle counter, and a discharge reservoir. The atomizer has a liquid intake port and a gas intake port configured to aerosolize a liquid received at the liquid intake port. The impactor has an inlet coupled to the atomizer and has a first output port and a second output port. The impactor is configured to separate droplets wherein those droplets smaller than a selected cut point are directed to the first output port and those droplets larger than the selected cut point are directed to the second output port. The particle counter is coupled to the first output port and is configured to count particles larger than at least one particle size cut point. The discharge reservoir is coupled to the second output port.

A multilayer filter screen and the manufacturing method thereof are provided. The multilayer filter screen includes a conductive powder layer and a plastic powder layer. The conductive powder layer and the plastic powder layer are stacked up through a solidifying process. Therefore, the mechanical structural strength and the anti-static electricity function of the multilayer filter screen are improved.

The present invention discloses a FeAl-based metal porous membrane and a preparation method thereof, which relate to the technical field of industrial gas-solid and liquid-solid separation and purification, and mainly address problems in the prior art, such as cracking-prone and peeling of a membrane layer of an existing FeAl-based metal porous membrane during its preparation and use. The preparation method of the present invention comprises the steps of: adding a FeAl-based metal powder and a metal fiber powder into an organic-additive-added water-based solvent, and mixing them into a slurry; casting the slurry, through a casting machine, to form a membrane green body on a metal substrate layer, and letting it dry; and placing the dried membrane green body in a sintering furnace, to remove organic substances and perform high-temperature sintering and predetermined-temperature reaction synthesis.

A fluid purification system capable of removing contaminants from significant volumes of fluids under low pressure conditions and at reasonable flow rates is provided. The system comprises a first fluid purification media comprising a rigid porous purification block. The rigid porous purification block includes a longitudinal first surface; a longitudinal second surface disposed inside the longitudinal first surface; and a porous high density polymer disposed between the longitudinal first surface and the longitudinal second surface. The system further includes a second fluid purification media, comprising a fibrous, nonwoven fabric disposed adjacent to the first surface of the first fluid purification media, the second surface of the first purification media, or both.

Filters, filter devices including the filters, and methods of using the filters and filter devices, are disclosed.

A filtering medium, a method for the production thereof, the use of said filtering medium and a method for reducing the content of multiple contaminants simultaneously in fluids by means of said filtering medium, wherein said filtering medium has or includes at least one of the following: a mixture (A) containing a major part of an iron-based powder and a minor part of a silver powder, an iron-silver powder alloy (B), and an iron-based porous and permeable composite containing silver (C).

An internal combustion engine including a urea-water solution injection in the exhaust system, includes at least one urea-water solution tank, at least one pump, at least one intake line leading to the pump, at least one urea-water solution metering valve which is connected to the pump with the aid of a pressure line, and at least one return line which leads from the pump to the urea-water solution tank and at whose end opposite to the pump a filter element is situated, as well as at least one urea-water solution sensor situated in the urea-water solution tank.

Devices comprising a component which has an open porous structure composed of an alloy of nickel and titanium or a mixture of nickel and titanium. The devices can be implanted in a mammalian body and provide desired interaction with protein, blood, ions, bone cells, and tissue. The devices are particularly useful for providing a substrate for the ingrowth of bone. In the open pore structure, preferably more than 95% of the pores having a size of 50-1000 m, particularly 50-600 m, with a pore size standard deviation of 250 m or less, particularly of 150 m or less, and an average porosity by volume of 40-80%. When the device is implanted adjacent to a cancellous bone, the porous component preferably has a modulus of 0.1-1.2 GPa. When the device is implanted adjacent to cortical bone, the porous component preferably has a modulus of 16 to 24 GPa. The devices are also useful for filtering a liquid.