On the afternoon of March 23, Yu Diamond (300064.SZ) announced that the company and its wholly-owned subsidiary Zhengzhou Synthetic Diamond and Products Engineering Technology Research Center Co., Ltd. (hereinafter referred to as “Engineering Centerâ€) recently obtained the national knowledge of the People’s Republic of China. The three invention patent certificates and two utility model patent certificates issued by the Property Rights Bureau are as follows: 
Source: Yu Diamond Announcement According to the announcement, the above patents are summarized as follows: 1. A diamond olefin-reinforced and tough PA6 modified plastic and a preparation method thereof: the diamond olefin used in the present invention can be substituted for other reinforcing tougheners after being functionalized. The flame retardant avoids adding various components such as a flame retardant, a lubricant, and a toughening agent at the same time, and the cost is greatly reduced, and the pollution is reduced; the reinforced and toughened PA6 modified plastic of the invention has high strength and toughness, and at the same time It also has high thermal stability, wear resistance, flame retardancy and good self-lubricity. It has good molding and processing properties and is more environmentally friendly. When preparing modified and toughened PA6 modified plastic, the preparation process is reasonable and simple. Convenience. 2. Preparation method of a high wear-resisting and high-heat-dissipation brake pad: the purpose of selecting diamond olefins of different sizes and different ratios is to make the diamond olefin friction layer dense and the friction effect is good; the diamond olefin is a super-hard nano material composed of diamond, It has the advantages of high hardness, high wear resistance and high thermal conductivity. Diamondene as a friction layer of automobile brake pads has the characteristics of high wear resistance and high heat dissipation. The heat dissipation rate of diamond olefin is the highest among known materials. The heat generated by the friction with the brake disc or the brake drum is quickly dissipated into the surrounding air, so that the heat cannot be accumulated on the brake pad, and the wear resistance is high, the friction coefficient of the brake pad of the automobile is improved, and the friction coefficient is improved. The braking performance of the car improves the service life of the brake pads. At the same time, the noise is significantly reduced compared with the semi-metal brake pads. Since there is no metal in the friction layer, the wear on the brake disc is greatly reduced. 3. Counter electrode for dye-sensitized solar cell and its preparation and application: The object of the present invention is to provide a counter electrode for a dye-sensitized solar cell and its preparation and application, aiming at overcoming the deficiencies of the prior art The use of FTO conductive glass with Pt/carbon crystal plating as the counter electrode not only reduces the amount of Pt, but also improves the charge transport efficiency and energy conversion efficiency of carbon crystals, and improves the stability of dye-sensitized solar cells. Market Competitiveness. 4. A new top hammer fixing device: a novel top hammer fixing device comprising a steel ring, a top hammer and a block, wherein the inside of the steel ring is provided with a top hammer inlet located above and a spacer inlet located below, The top hammer inlet is a tapered hole that is received at a lower end, the spacer inlet includes a lower cylindrical hole and an upper conical cavity, the conical cavity communicating with a lower end of the top hammer inlet, the top hammer being embedded The top hammer inlet is embedded in the block inlet, and the upper end of the block abuts against the lower end of the top hammer for axial positioning. 5. Heating system suitable for synthetic diamond six-face top hydraulic equipment: The heating system provided by the utility model for the synthetic diamond six-face top hydraulic equipment, including the DC power supply module and the water-cooled cable; the DC power supply module has high effective utilization rate and power supply The stability is good; the water-cooled cable belongs to a fully sealed large current transmission device, which has good cooling effect, high power transmission efficiency and stable operation.
Steel Grades: S235-S355, L235-L355, P195-P460, GR. A, GR. B, X42 ~ X70, J55, STK400, STK500, SS400, Q195, Q215, Q235, and Q345,
OD: 219.1-660.4mm
WT: 5-22mm
Length: 20m maximum
Process method: ERW
Surface Treatment: Varnished, 3PE, 3PP, FBE, Galvanized etc coated.
Pipe Ends: Square cut or bevelled
Package: Suitable packing according to the size of the pipes.
Usage: Oil, gas, water transportation, piling, chemical&construction use.
Supply Ability: 30000 metric tons per month.
Source: Yu Diamond Announcement According to the announcement, the above patents are summarized as follows: 1. A diamond olefin-reinforced and tough PA6 modified plastic and a preparation method thereof: the diamond olefin used in the present invention can be substituted for other reinforcing tougheners after being functionalized. The flame retardant avoids adding various components such as a flame retardant, a lubricant, and a toughening agent at the same time, and the cost is greatly reduced, and the pollution is reduced; the reinforced and toughened PA6 modified plastic of the invention has high strength and toughness, and at the same time It also has high thermal stability, wear resistance, flame retardancy and good self-lubricity. It has good molding and processing properties and is more environmentally friendly. When preparing modified and toughened PA6 modified plastic, the preparation process is reasonable and simple. Convenience. 2. Preparation method of a high wear-resisting and high-heat-dissipation brake pad: the purpose of selecting diamond olefins of different sizes and different ratios is to make the diamond olefin friction layer dense and the friction effect is good; the diamond olefin is a super-hard nano material composed of diamond, It has the advantages of high hardness, high wear resistance and high thermal conductivity. Diamondene as a friction layer of automobile brake pads has the characteristics of high wear resistance and high heat dissipation. The heat dissipation rate of diamond olefin is the highest among known materials. The heat generated by the friction with the brake disc or the brake drum is quickly dissipated into the surrounding air, so that the heat cannot be accumulated on the brake pad, and the wear resistance is high, the friction coefficient of the brake pad of the automobile is improved, and the friction coefficient is improved. The braking performance of the car improves the service life of the brake pads. At the same time, the noise is significantly reduced compared with the semi-metal brake pads. Since there is no metal in the friction layer, the wear on the brake disc is greatly reduced. 3. Counter electrode for dye-sensitized solar cell and its preparation and application: The object of the present invention is to provide a counter electrode for a dye-sensitized solar cell and its preparation and application, aiming at overcoming the deficiencies of the prior art The use of FTO conductive glass with Pt/carbon crystal plating as the counter electrode not only reduces the amount of Pt, but also improves the charge transport efficiency and energy conversion efficiency of carbon crystals, and improves the stability of dye-sensitized solar cells. Market Competitiveness. 4. A new top hammer fixing device: a novel top hammer fixing device comprising a steel ring, a top hammer and a block, wherein the inside of the steel ring is provided with a top hammer inlet located above and a spacer inlet located below, The top hammer inlet is a tapered hole that is received at a lower end, the spacer inlet includes a lower cylindrical hole and an upper conical cavity, the conical cavity communicating with a lower end of the top hammer inlet, the top hammer being embedded The top hammer inlet is embedded in the block inlet, and the upper end of the block abuts against the lower end of the top hammer for axial positioning. 5. Heating system suitable for synthetic diamond six-face top hydraulic equipment: The heating system provided by the utility model for the synthetic diamond six-face top hydraulic equipment, including the DC power supply module and the water-cooled cable; the DC power supply module has high effective utilization rate and power supply The stability is good; the water-cooled cable belongs to a fully sealed large current transmission device, which has good cooling effect, high power transmission efficiency and stable operation.Name: ERW Steel Pipe
ERW is
used for transporting oil. gas and other vapour-liquid objects and can
meet the requirements of high and low pressure. besides, widely used in
aviation, aerospace, energy, electronics, automobiles, light industry as
well as various industry departments.So far, It occupy a decisive
position in the field of transporting tube all over the world.
Steel Grades: S235-S355, L235-L355, P195-P460, GR. A, GR. B, X42 ~ X70, J55, STK400, STK500, SS400, Q195, Q215, Q235, and Q345,
OD: 219.1-660.4mm
WT: 5-22mm
Length: 20m maximum
Process method: ERW
Surface Treatment: Varnished, 3PE, 3PP, FBE, Galvanized etc coated.
Pipe Ends: Square cut or bevelled
Package: Suitable packing according to the size of the pipes.
Usage: Oil, gas, water transportation, piling, chemical&construction use.
Supply Ability: 30000 metric tons per month.
Saw Line Pipe,Smls Line Pipe,ERW Steel Line Pipe,SSAW Pipe,ERW CS Pipe
Shijiazhuang Bang dong Pipeline Technology Co,Ltd. , https://www.bd-pipefitting.com