Due to the frequent movement of the population, there are many cases in which the place where the driver's license is held and his account are not in the same place. For example, a driver's license is obtained in the university where the student is studying, but his account is still in his hometown. So what happens when the driver's license expires? Let's take a look at the introduction of the specific operation flow.

First, look at the level of content stipulated by laws and regulations. According to the relevant laws and regulations of the Ministry of Public Security, the driver should apply for replacement at the vehicle management office of the driver's license issuing center within 90 days of the expiry date of the driver's license, and he must fill in relevant materials when handling the driver's license. This means that we can handle the replacement of driver's licenses in different places, and we must be more prepared in terms of materials. The business of changing driver's licenses in different places may be handled by the vehicle management office from the place of eviction to the place of transfer, or to the place where the driver's license was issued. During the process of processing, the information required by the local area must be consulted, so that the business can be handled smoothly. It is a good place to change the driver's license.

Second, look at the specific operational level. From the perspective of the prepared materials, the procedures for the replacement of driver's licenses are required to be provided in accordance with relevant regulations: the driver's identity certificate; driver's license; medical certificates provided by a hospital at or above the county level. From the perspective of the type of business handled, there are several cases: (1) If the driver's residence is relocated outside the original jurisdiction of the vehicle management office, the driver should go to the vehicle management office of the place of transfer for replacement; (2) ) If the driver does not live in the area where the driver's license is issued, he can apply for a driver's license replacement at the vehicle management office in his place of residence. Know where you can handle the replacement business, and then prepare the appropriate materials, then submit the information can be, the replacement driver's business can be completed on the same day.

Third, issues that need attention in the process of handling. The submitted data should be carefully checked to ensure that there are no errors; Paris's replacement driver's license business requires a certain fee, timely payment; if it is online replacement application business to log on to the site to view the results of the audit, in the effective period of time to the service hall Go to pick up your replacement driver's license.

Submerged arc welded pipe: a strip coil as raw material, often warm extrusion molding, automatic double wire double buried arc welding process of welding and the Spiral Pipe joints. The characteristics of submerged arc Welded Steel Pipe: welded pipe production process is simple, high production efficiency, low cost, rapid development. Strength of spiral welded pipe is usually better than straight seam welded pipe is high, can use a narrow diameter of billet production larger pipe can also differ with the same width of the billet production diameter pipe.But with the same length of Straight Pipe, weld length of 30~100%, and the production rate is low. 

Photo of our Saw Pipe :

Submerged arc welding Steel Pipe material: Q235A, Q23b, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9,

Large diameter submerged arc welded steel pipe

Q345 L245 L290 X42 X46 X70 X80 0Cr18Ni11Nb.

(1) raw material that is strip coil, welding wire, flux. Have to go through strict physical and chemical tests before they are put into the investment.

(2) strip head and tail docking, using single or double wire submerged arc welding, the steel tube rolled by automatic submerged arc welding welding.

(3) before molding, the strip passes through the leveling, trimming, planing, surface cleaning and conveying, and bending and handling.

(4) using the electric contact pressure gauge to control the pressure of the cylinder on both sides of the conveyor, to ensure the smooth delivery of the strip.

(5) the external control or internal control roll forming.

(6) using the welding gap control device to ensure that the weld gap to meet the requirements of welding, pipe diameter, the wrong side of the amount and the weld gap are strictly controlled.

(7) welding and welding with the Lincoln Electric welding machine for single or double wire submerged arc welding, so as to obtain the stable welding specification.

(8) the welding seam after welding is through the online continuous ultrasonic automatic inspection, to ensure that 100% of the spiral weld nondestructive testing coverage rate. If there are defects, automatic alarm and spraying marks, the production workers at any time to adjust the process parameters, timely elimination of defects.

(9) the air plasma cutting machine to cut a single pipe.

(10) into a single tube, each batch of steel tube head to strict inspection system first, check the weld mechanical properties, chemical composition, blending, surface quality of steel pipe and after nondestructive inspection, to ensure that the pipe manufacturing technology qualified, can be formally put into production.

(11) in the weld on the site of continuous acoustic inspection marks, after manual ultrasound and X ray review, if there are defects, after repair, once again after the non destructive testing, until the defects have been eliminated.

(12) strip butt weld and intersecting and spiral seam D connector tube, all through X ray TV or film examination.

(13) each pipe is tested by hydrostatic pressure, and the pressure is sealed by radial seal. The test pressure and time are strictly controlled by the steel pipe water pressure computer testing device. Automatic print record of test parameters.

(14) the pipe end machining, the end verticality, accurate control of slope angle and blunt edge.

Submerged arc welded steel pipe and its standard classification: pressurized fluid transportation of spiral submerged arc welded steel pipe (SY5036-83) is mainly used for oil and natural gas pipeline; pressure fluid transportation with spiral welded steel pipe (sy5038-83), with high frequency welding method of lap welding, used for pressure flow transport of spiral seam high frequency welding steel tube. Steel pipe pressure ability, good plasticity, facilitate welding molding and processing; generally low voltage liquid transportation with spiral submerged arc welded steel pipe (SY5037-83), using double-sided automatic buried arc welding or welding was made for water, gas, air and steam general low-pressure fluid conveying submerged arc welded steel pipe.

Saw Pipe

Steel Saw Pipe,Customized Lsaw Pipe,Longitudinal Welded Pipe,Steel Pipe

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