Machine is (), the end of the power output. A, the thermal energy is converted to mechanical energy B, the thermal energy is converted to electrical energy C, converts electrical energy into mechanical energy 14, made the engine ignition sequence is (). A, 1-2-3-4-5-6 B, 1-3-5-2-4-6 C, 1-5-3-6-2-4 15, normal operating temperature of the engine's insistence on () within the range. A, 70 ~ 80 ℃ B, 80 ~ 90 ℃ C, 90 ~ 95 ℃ CH10 mm (see Table 2) barrel stick - CH (tapered roller value larger than the barrel roll) it takes to determine the length of smooth sections diameter leisurely job at the initial length of lubricants segment (bite segment) Select GF 1.05 head protrusion on head after head long length of HP points to check the amount of immediate reach reconciliation internship biting factor F = 0.2 * 165 F = 33mm Table 1: B, thin-walled tube to take lower. How to determine the ratio of the interval between the guide rollers spaced intervals disc tray guide in the selection of the rolling deformation zone ovality, and oval in turn affects the quality of the capillary, biting conditions, axial slippage, perforation rate, expanding capacity, rolling Cards and capillary standard manipulation and so on. Especially for capillary quality (perforated steel pipe) is more significant influence, the greater ovality, capillary table table presents the greater the crack can prematurely cavity can constitute the greater. Production, the guide plate spacing is always greater than the roll gap, ie the ratio between the two oval coefficient, usually between 1.07 to 1.15, take a small value when perforated thick-walled tube and alloy tube. Guide plate spacing can be determined oval coefficient derived: A = (1.07 ~ 1.15) * E Note: A- E- roller guide plate spacing interval adjustment interval adjustment premier guide disc guide plate, height adjustment and axial adjustment. Another approach is the use of ejector cycle, such ejector structure is simple, easy maintenance, each 6 to 12 usually needs only tune cycle use. 4.10.8 There are several ways to use the plug head of the primary ways to use are the following: head and ram coupled together to carry out a cycle. Head off after damage needs to be replaced, under normal conditions, a group of 6 to 7 ejector cooling stood outside the rolling line, a larger area. Head online circulation. Namely the use of a ram, each perforation once again head to replace the use of three head under normal conditions, the order of the head loop is 1,2,3 then 1,2,3. This approach replaces only the head, using a convenient, fast-paced production. However, the precise positioning needs immediate, high-precision machining of things, equipment operating properly, otherwise, easy to attack the head with the jack connection is not strong, the head falling situation. A head / ram alone use. When the head is damaged, replace the plug to be online ram. Modifications "pressure piping components production permit rules" (TSG D2001-2006) (the quest stereotypes draft) one of the "General Provisions" of the original text was revised to modify the terms of Article IV (second paragraph) AQSIQ served outside pressure piping components, pressure pipe pipe special steel, polyethylene produced mixed ingredients allow begged acceptance, and entrusted provinces, autonomous regions and municipalities directly under the Quality Supervision Bureau skills (hereinafter referred to as the provincial quality supervision and some skill) as other pressures within the jurisdiction production pipeline components allow acceptance AQSIQ pressure piping components as foreign territory (including Class A and Class AX) pressure piping components production permit begged acceptance. Provinces, autonomous regions and municipalities directly under the Quality Supervision Bureau skills (hereinafter referred to as the provincial quality supervision and some skill) as a producer within the jurisdiction of other pressure piping components allow admissibility 15 (second, three) begged to fit the conditions of production units, signed as accepted authority shall agree on the admissibility of stereotypes begged, begged a copy of a copy to read tables and electronic text organs, two production units back begged table, another table begged accepted by the authorities as an archive. For the producers of one of the following situations, make inadmissible begged selection, as accepted authority shall not accept stereotypes on begged signed books, issued by the selection of books will not be accepted, and a copy to read authority. Begged to fit the conditions of production units, as the accepted authority shall sign the pleading agree accepting stereotypes, two production units back begged table, another table begged accepted by the authorities as an archive. For the producers of one of the following situations, make inadmissible begged selection, as accepted authority shall not accept stereotypes on begged signed books, issued by the selection of books will not be accepted. Second, the "Annex A" modification (a) on the "pressure piping components allow the project and its scale of production," some modification 1. Varieties (merchandise) for seamless steel pipe, class A2, B and programs on behalf of merchandise modify the original modified to A2 (1) nominal diameter less than 200mm of boiler and pressure vessel seamless steel gas cylinders; (2) the nominal diameter less than 200mm of oil and gas transport pipelines and gas fields (sets) seamless steel pipe (1) nominal diameter boiler and pressure vessel of less than 200mm seamless steel gas cylinders; (2) the nominal diameter less than 200mm of oil and gas transport pipelines and gas fields (sets) seamless steel pipe; and (3) thermal expansion alloy steel pipe (special) uniform. If there are more leaked magnetic field DC magnetization, mutations at the workpiece cross section will cover up the shortcomings of the component flash. 6) in favor of the magnetic powder in the direction to move because of the electrical communication constantly changes, the onset of the magnetic field direction changes continuously, it is beneficial to move the magnetic particle to promote the stirring magnetic leakage field at the magnetic marks visible flash. 7) is used to assess the current (or rectifier) ??magnetization of the magnetic marks found shortcomings DC magnetization than the flash because of the discovery of deep electromagnetic communication, so the DC magnetization of the magnetic marks found in flash, not after if the demagnetization of discovery with electromagnetic communication to clarify the The disadvantage is not the appearance of shortcomings, have a certain depth. 8) apply to the inspection service of the workpiece with electromagnetic communication, in-service inspection of the appearance of fatigue cracks workpiece active high, the device simple and concise, is conducive to on-site operations. 4) active magnetic particle shape during discussions, questions have been related to the activity, in order to be able to usefully detected shortcomings, magnetic energy is necessary activities in the appearance of the subject of the workpiece so that the letter was composed of magnetic leakage field adsorption marks flash. In the wet inspection, the activity is the use of magnetic suspension to the femoral artery and Magnetic leakage field activities, check in dry, and the wind is the use of magnetic particles, and the use of electronic communication constantly changes direction, the onset of the magnetic field has also been commutation intense pulsating and single-wave rectifier related episodes magnetic stirring magnetic powder, magnetic powder promoting activities. Because DC is not conducive to the activities of the magnetic powder, so DC does not apply to dry inspection. 5) Wet Density black magnetic powder and the red density of about 4.5g / cm, a pure iron powder with a dry density of about 8g / cm, hollow spherical magnetic powder has a density of 0.71 ~ 2.3g / cm , the density of fluorescent magnetic iron powder in addition to the choice of materials, but also with a magnetic powder, a fluorescent dye and a binder ratio related. Magnetic particle density have a certain impact on the testing role in the wet inspection, the density, easy accumulation, poor suspension; in dry inspection, the density, the demand leakage magnetic field of the magnetic powder to a large adsorption. The size and density of the magnetic characteristics of the data, it should be summarized thinking. 6) identification of the identification of the optical function of the magnetic means, comprising a magnetic powder color, fluorescence intensity, and the color contrast with the outer workpiece. For non-fluorescent magnetic particle, just the color and appearance of the workpiece pose a great color contrast of magnetic powder, magnetic marks only simple queries to the disadvantage of only briefly found; for fluorescent magnetic particle, under ultraviolet light when the query, the workpiece appearance of purple, only need a small visible background. Magnetic marks yellowish green, bright color, can supply maximum contrast and brightness. However, a total suspension of masked appearance since the fluorescence will attack small fluorescent background, and thus the concentration of fluorescent magnetic suspension should not be too high, about non-tenth the concentration of fluorescent magnetic suspension. Overall, the impact of the use of the function of the magnetic powder over six elements, but these elements is related to each other, mutual restraint, seeking certain aspects assumed isolated and overhead on the other hand, even capable of causing test defeat. Some assume that the magnetic properties of magnetic weighing method can reflect the magnetic powder, But magnetic sample weighing method called the Magnetic Magnetic few grams for qualified internship proved not entirely robust. After the foundation of the approach should be summarized active role in the function of the test to measure the magnetic particles function. 8.5.5 8.5.5.1 EMAT EMAT (EMA) skills to open and use an electromagnetic acoustic (EMA) skills abroad Open Open nondestructive viewing skills after a century, and its importance has been recognized around the world . We are doing all kinds of integrated business management consulting business management consulting organization Contact: Miss Hao Mobile: 13851787257 Telephone and Fax: 025-83619622 E-mail: 980837454@QQ.Com QQ: 1445404680 Company website: http: //www.sjzxnj .com / Address: Qixia District and Yan Jinhua Road, Building 1602 Room 289