According to the Central Meteorological Observatory, on the 8th to 11th, affected by moderate-intensity cold air, the eastern part of the northwestern region, the central and eastern Inner Mongolia, the northern and eastern parts of North China, the northeastern region, and the eastern part of Huanghuai will be cooled by 4-8 °C. The temperature drop can reach 10~12°C, and most of the above areas are accompanied by 4~5 northerly winds; some parts of eastern and northeastern Inner Mongolia have moderate rain and local heavy rain. In the next three days, most of the eastern and southwestern parts of the Qinghai-Tibet Plateau continued to be rainy and rainy. The rainfall was mainly rainy and moderate to heavy rain in some areas. There was much rainy weather in the Yanliang earthquake area, and there was moderate rain on the night of the 8th. From night to tomorrow morning, most of the central and eastern parts of China have light fog. Among them, there are fogs with visibility less than 1km in central Henan, northern Jiangsu, and eastern Hunan. From night to tomorrow, there are some areas in southern Hunan, eastern Guangxi, western Guangdong, and central Jiangxi.
The specific forecast for the next three days is as follows:
From 20:00 on the 8th to 20:00 on the 9th, there are small to moderate rains (snow) or sleet in the central and eastern part of the Qinghai-Tibet Plateau, northeastern Inner Mongolia, and northern Heilongjiang; eastern part of the northwestern part, central and eastern Inner Mongolia, western part of northeastern China, north central part of North China, There are small to moderate rains or showers in the western and northern parts of Jianghan, northwestern Jiangnan, and southwestern regions. Among them, there are heavy rains in parts of western Heilongjiang, western Jilin, and southern Sichuan. There are 4 to 5 winds in the central and eastern parts of Inner Mongolia and the central and western parts of the Northeast. The northeastern part of the East China Sea, the Taiwan Strait, the Bus Strait, and the northeastern part of the South China Sea have a northerly wind of 6 to 7 and a gust of 8 winds.
From 20:00 on the 9th to 20:00 on the 10th, there were light rain (snow) or sleet in eastern Tibet, southern Qinghai, northeastern Inner Mongolia, northwestern Heilongjiang, etc.; most of the northeast, northeastern Shandong, southwestern part, Hubei There are light rains or showers in the southwest, western Hunan, and northwestern Guangxi. Among them, there are moderate to heavy rains in parts of northern and eastern Heilongjiang, eastern Jilin, northeast Liaoning, western Sichuan, western Yunnan, and southeastern Tibet. There are 4 to 5 winds in the central and eastern Inner Mongolia, North China, Northeast China, and Shandong Peninsula. There are 6 to 7 winds and 8 gusts in the south of the East China Sea, the Taiwan Strait, and the northeastern part of the South China Sea.
From 20:00 on the 10th to 20:00 on the 11th, there is light rain (snow) or sleet in the eastern part of the Qinghai-Tibet Plateau. There are small to moderate rains in the southeastern part of the northwestern region, most of the southwestern region, and the eastern part of Heilongjiang. Among them, northeastern Heilongjiang, Tibet There was heavy rain in the southeast. There are 4 to 5 winds in central Inner Mongolia and northeastern China. There are 7-8 grades in the Taiwan Strait and 9-10 grades of northeasterly winds. The northeastern part of the East China Sea and the northeastern part of the South China Sea have 6 to 7 grades and the gusts of 8 to 9 grades.
Agricultural production advice:
The northern region is affected by cold air, which is unfavorable for autumn harvesting. It is necessary to pay attention to timely harvesting and sowing. Pay attention to the timely warming and warming work for areas that have already been carried out in autumn. In the southwestern region, where there is continuous rainy weather, it is necessary to pay attention to the drainage of the sputum, grasp the gap of precipitation, and harvest the autumn and autumn grain in time.
Flange is an essential part of pipeline connection, according to the standard is divided into JIS BS DIN ANSI Italian standard. Flange standard is widely used, 10kgs and 16kgs, pressure carbon steel flange, is the most conventional, the most popular, and Commonly used flanges.
The biggest use of flanges is as a way to connect pipes, Valves, pumps and other equipment to form a piping system. It facilitates the cleaning, inspection and maintenance of pipes. Reduced engineering costs.
Weld the flange and the pipeline evenly, and then fasten the connection with bolts to effectively connect the pipeline, valve, pump and other equipment accessories, so that the whole pipeline is integrated and starts to work normally.
It is the most widely used pipe fittings in the piping system and equipment of machinery, petroleum, chemical industry, water conservancy, electric power, shipbuilding, air conditioning and other departments.
Type of flange:
According to the shape can be divided into: FF flange, RF flange, BLIND flange, SLIP-ON flange, Welding NecK
Flange, Threaded Flange, SocketWeld Flange.
According to the pressure can be divided into: PN16. PN10. PN25, PN40, PN60, PN100,
According to the process, it can be divided into: forged flange, cast flange, steel plate flange
According to the material can be divided into: carbon steel flange, stainless steel flange, alloy steel flange
Flange production process:
1) a: Forged flange
Saw billets of different specifications and models into flange blanks, add them to a reverberatory furnace and heat to 1000 degrees to take out, and then forge the flange blanks into ring flanges by forging machines such as forging presses and air hammers, b: steel plate flanges
Put the steel plate into the punching machine, put it into the corresponding mold, and directly punch it into a ring flange blank.
c: cast flange
Put the low carbon steel standard scrap into the intermediate frequency furnace and heat it to 1200-1500, pour it into the mold
The type is a ring flange blank.
2) The formed ring flange blank is processed into a ring flange on a CNC machine tool according to the drawing, and then the flange is drilled with a CNC drilling machine according to the drawing requirements, and the finished product is completed.
3) For the finished flange product, the thickness, hole diameter, center distance, inner and outer diameter of the flange shall be inspected according to the drawing requirements.
4) Type the flanges that have passed the inspection on the end face of the flange according to the customer's requirements, and do anti-rust treatment to the flange according to the customer's requirements, 1: paint, 2: anti-rust oil, 3: galvanized, and then install it. In wooden box for shipment.
Standard Flange,Metal Flange,Alloy Steel Flanges,Steel Flange
Inner Mongolia Overseas.Trade co.,LTD , https://www.flangevalvejoint.com