moncler homme Full diameter tube bias control _421

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Full diameter tube bias control

Billet Hz machines in Vt and tensile stress between the lance. Rolling in this state, if the width of the actinide show blank too small, steel can not be filled pass, pass to their pressure, then the slab may have to reverse, for soft actinium, this turn is particularly serious. Therefore, for oil well pipes 37Mn5 class should adopt micro-tension steel rolling. In order to achieve micro-tension rolling, on the nominal diameter (cold size) for the 176.7ram the tube, the use of PLC (programmable logic controller program Zhu) adjusted to achieve i. : A i = 0, i2 a i21 = A 39A, i32 a is1 = 47A of rolling a (Figure 2). Tube after rolling through the full diameter of the deviation of the measurement results show that micro-adjustable tension PLC rolling, full diameter tube +176. D ~ 176.6mm range of fluctuation, △ D = 0.6ram, compared with the nominal diameter actual diameter tolerance is a 0.1 to a 0.7 dish and Joel, 5, prince Yu 2 micro-tension rolling load current graph full diameter of the tube to meet the requirements of bias hope (see Figure 3). 2.3 Micro-Relay rolling rolling when i 0 is called the thrust rolling. Thrust rolling, the billet rack under eight bite,[link widoczny dla zalogowanych], the next frame of the current increase in billet thrust between the two racks. Rolling state in this small section billet rolling, the billet will be produced between the two rack units of life. For large or too rigid section of the slab, even if sets do not produce,[link widoczny dla zalogowanych], there will be the ears and rolled card accident. But for a small amount of soft Width actinides and so on, in order to prevent hole to fill, and sometimes also used thrust rolling. Controlled by PLC to achieve the i2 a il1 = 435-415 = 20A,[link widoczny dla zalogowanych], i2: a i21 = 494-454 = 40A, is2 a isl = 727-680 = 47A (Figure 3) state the name of size 176.7ram rolling the St35, St45 (DIN standard steel). Measurements show that the full diameter tube towel to fluctuate within the range 176.8 ~ 177.6mm, AD = 0.8ram (Figure 4), compared with the nominal diameter actual diameter tolerance of +0.1 ~ +0. 9mm, the same tube size to meet user tolerance to surgery. (Continued on page 9) test tube for a 6 slot. The results shown in Table 4. In the production of consumption under the impact of inhibitors on the acidity of the initial sulfur foot of Table 4 Phi Tuan Yu Xian 47o ~ 49ot love corrosion of steel consumption of sulfuric acid prayer song off the village tube Tuan {E Lang repair disk () degrees () () 1LK18.5 ~ 19. o. 2 ~ 7.958.4 ~ 61.16oi18.5 ~ 19.03.9 ~ 4.576.3 ~ 78.9 Table 4 shows, plus LK 60l acid solution plus the acid solution than the lower acidity of slow, in the same amount of acid steel cases, less consumption of sulfuric acid of 17.8 to 17.9. In addition, from the production test site to see,[link widoczny dla zalogowanych], add LK of the sulfuric acid liquid mist Sin less, improving the operating environment, waste acid lotion to reduce emissions, reduce environmental pollution. According to laboratory and industrial test results may be used to calculate the roar LK inhibitor economic benefits. I plant the whole 9 years of consumption of sulfuric acid of about 100t, with savings of sulfuric acid corrosion inhibitor LK 100 × 0.159: l5.9t, cost savings 1951.6 yuan. In addition, due to corrosion of steel consumption decreased by LK 0.46%, year to 25OOt dollars, can save steel 2500 × 0.46 = 11.5t, to waste management parity l350 dollars / t total, cost savings l350 × l1 .5:15525 dollars. Total Total 17,476.6 yuan in economic returns,[link widoczny dla zalogowanych], ie, the annual savings of 1.8 million. 5. Conclusion of a 45-LK is the best inhibitor of the inhibitor. LK 45 with a corrosion inhibitor to reduce acid consumption by 15.9%, lower steel consumption 0.46. LK 45 with a corrosion inhibitor, and treatment of waste acid lotion reduction of emissions, pollution reduction, improvement of operating conditions. LK worth applying a corrosion inhibitor 45. (Continued from page 5) day length increase livestock management oysters (mm Figure 4 Caesar thrust rolling diameter of tube length deviation;. The wrong thing because Po actinium seamless ~ 140mm tube unit provided the request weight tolerance of not more than ± l, full diameter deviation of ± lmm or less, with 6VH mill thrust or tension in the absence of rolling it is difficult to achieve. Baoshan Iron and Steel Rolling Plant PLC control achieved through micro-thrust or micro-strip mill tension rolling, St35, St45 class micro tension steel rolling, 37Mn5 spirited rejection of micro-thrust class steel rolling, so that the deviation control tube length within the disability Imm, fully meet the requirements of users of the tolerance tube.

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