74results about How to "No bonding" patented technology

Abstract The present invention provides porous ceramic materials having good resistance to heat, acid and base, comprising three or more oxides selected from an oxide of silicon (SiO ), an oxide of aluminum (Al O ), an oxide of a transition metal, MxOy, [wherein M represents a 4B, 5B or 6B-group transition metal which can be selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W or Ce, x represents an integer of 1 to 3, and y represents an integer of 1 to 3] and its preparation. By applying ceramic materials prepared according to the present invention that are structurally, thermally and chemically stable to a porous honeycomb support for the purification of exhaust gas or to a filter (DPF, Diesel Particulate Filter) for the purification of diesel engine exhaust gas, it is possible to prevent or remarkably reduce any structural destruction caused by corrosive gas, which results from employing a cordierite material as a structural support.

The invention discloses an instant freezer and belongs to the technical field of instant freezing equipment. The instant freezer comprises a freezer body, a freezing chamber and an air supply chamber provided with a cold air blowing device are arranged in the freezer body, a conveying belt is arranged in the position corresponding to the cold air blowing device around the air supply chamber, and a power chamber used for installation of a first power device is arranged outside the freezer body. The two ends of the conveying belt extend out of the inlet end and the outlet end of the freezer body, and a normal temperature heating device which is communicated with the power chamber and used for heating the conveying belt is arranged at the inlet end of the freezer body. Heat in the power chamber acts on the conveying belt through the normal temperature heating device, so that the temperature of the body of the conveying belt is raised, the function of the cold air blowing device is utilized in an auxiliary mode, fluidized instant freezing is achieved, the problem of adhering between goods and adhering between the goods and the conveying belt is avoided, the single rate of the goods and normal conveying of the conveying belt are guaranteed, and the production efficiency and the product quality are improved. Meanwhile, the first power device is externally arranged, the refrigerating capacity is fully utilized, the load of the freezer is reduced, and the purpose of energy conservation is achieved.

The invention discloses a method for producing spherical zinc powder by using hot-dip galvanizing slag, which belongs to the technical field of nonferrous metal recovery. The method is as follows: (1) batching; (2) blowing smelting evaporation: put the material in a sealed heat-resistant reaction device, inject inert gas or nitrogen into the blowing pipe, and heat at a constant temperature to evaporate all the Zn in the material; (3) quickly Uniform cooling: High-purity zinc vapor enters the condensing device with inert gas or nitrogen, and after sieving, spherical zinc powder with a particle size of 1-4 μm is obtained. In the method of the invention, the raw material hot-dip galvanizing slag belongs to the secondary utilization product, which reduces the raw material cost by 30% compared with the traditional process; it does not need to remove impurities in advance, and the process is simple, the process is short, the investment is small, and there is no pollution; the whole process flow is completely Airtight, the quality of the ultrafine zinc powder produced is stable, no oxidation, no bonding, the main technical indicators are: the mass content of total zinc is ≥ 99%, and it can be used as zinc-rich paint or as a raw material for replacing reducing agents.

The invention relates to a processing technique of a pipeline compound optical cable used for transmitting information in an optical communication network, which belongs to the technical field of optical cable processing. The invention is characterized in that: the optical cable is synchronously combined into the pipeline when the pipeline is produced to form the pipeline compound optical cable. Loose state is kept between the optical cable in the pipeline and the pipeline without bonding phenomenon, thus ensuring the repeated extraction and use of the pipeline and the optical cable; the product length can be cut at will according to needs of users and different situation of transport means; above 4 kilometers for each pallet can be achieved, and the processing efficiency is high, the equipment structure is simple, the working processes are less, and the appearance is beautiful. The processing technique of the pipeline compound optical cable overcomes the shortcomings of large investment for equipment, numerous constructors, big organization difficulty, low working efficiency and comparatively short unit product length, etc. in the existing pipeline optical compound production which mainly adopts an air blow method and completes the pipeline production and the optical cable compound by two times; therefore, the processing technology is suitable for the processing of various pipeline compound optical cables.