印刷类中英文对照

英文原文：Printing presses the stand or fall of quality, the quality of printing was finally measure. Printing ink, smooth, no shade change is at least the quality requirements. But because people know level of progressive, printing machine string of ink bodies are improving continuously, continuous improvement. In offset printing process, control is the key, including ink balance control good string string of ink roller printing quality of dynamic is to improve a very important factors, especially need the printer operator adjusted accurately, but it is often ignored by many people, this is also the author in enterprise operation when the problem often ignores the printer that affected the subtle printing printing quality.Then the automatic control of modern printing increasingly high degree, can according to the different printing products accurate adjustment string of ink institutions: string of momentum size and starting point position adjustment, to better improve product quality.Let's talk about string of ink organization structure, together to correctly use and operation string of ink institutions.One, the function and the ink institutions of compositionString of ink institutions can be roughly classified into three parts: a string of ink roll, string of ink roll cooling institutions, string of ink roller driving institutions. String of ink agencies working parts of the ink roller is string. String of ink roll to turn both weeks, also has axial string move. The role of the circumferential rotation with other well as important as the ink roll to play week, fluffy ink role. String of ink roller axial string of dynamic main function is will ink in axial fluffy.General string of ink institutions have three pillars of string string ink roll: for ink ink roll will the inhomogeneity of the device is supply the ink layer pull, thin, beating well; In ink roller bearing of reservoir and ink, and distribution ink flow role play; Ink roll responsible for next string fluffy ink forme roller printing ink to after the roller on the plate on the remaining with the graphic and blank corresponding uneven ink.Second, the structure of ink rollIn different brands of printing is endless and same, generally fall into two categories: the whole string of ink roller and three string of ink roll. The whole string of ink roll on from manufacturing than three string of ink roll simple -- geometry precision and radial beat easily assured, but installation and repair relatively inconvenience, when installation must, in accordance with certain order. Global group and will reach considerably offset the face is a whole string of ink roll, is shown in figure 1 below. Three string of ink roll consists of three parts, three parts are screwed together, as shown in figure 2 shows, shaft head 1, 2, and roller body by screws 3 4 is fixed to atogether. When installation, tighten the screws up 3, will shaft head and roller body is an organic whole repeatedly; Demolition roller, loosen screws 3, can take down roller body. But when installation must ensure both ends of multiple concentricity shaft head installation will also destroy the concentricity down, so not is not generally not dismantle the circumstances of ink roll.Third, the temperature control device of ink rollDue to both the weeks of ink roll rotation and axial string move, printing ink by the two aspects of friction, the printing press, ink after operation temperature will soon rise to normal working temperature 20 ℃~ 30 ℃, if not attemperating unit, ink temperature will continue to rise, printing inks pilot-in-command time working temperature will rise to 70 ℃or above, then ink many features will change greatly, printing quality must not controlled, so the printing process we only guarantee the normal operating temperature, ink can be printed out high quality of printing quality. Modern printing machine contain attemperating unit, each country manufacturing presses string ink roller temperature control device quite different, but the principle is the same view with general circulation of ink roller center of coolant methods to reduce the temperature of ink roll, in order to reduce the temperature of the ink. Presented here will reach the printer is global group the cooling units, figure 3, figure 4 for the real figure for internal structure. In figure 3 we can see very clearly the ink roll of every root of the two root axis, one of the rubber is the cooling fluid and another root is a liquid pipe. Through the two root rubber in a string of ink roll can be general circulation cooling fluid inside. In figure 4 everybody can see the cooling fluid mechanical diagram.Fourth, the adjustment of ink institutionsThe regulation of ink institutions are two aspects: string of ink roll string of momentum regulation and string of ink roll string of ink starting point the adjustment. These two aspects of adjusting are according to the specific circumstances of print to make some adjustment, here with typical string ink agencies to specific to analyze.1.The string of ink roll the adjustment of momentumSo how much momentum in the printing of is the best? According to the specific circumstances of prints and decide: for most prints, strung momentum generally does not less than two ink area bolt spacing, in many cases to adjust to the biggest string of momentum half; For special printing will adjust to a specific string of momentum, here for two extreme example: suppose as shown in figure 5, the general-screening left for the printed field blocks.The other part is, then we can be blank of transfer to small, then momentum if the string word momentum will destroy the excessive local regulation (the ink in original work units often products meet); And if printing a whole wide amount of ink that coincides with printing, almost when we can adjust tothe maximum amount of ink, the greatest degree of the axial fluffy inks, it can make up the ink area adjustment disagreed. So how to adjust string of momentum? Different printing ink roll string of driving agencies are not quite the same, this according to the specific structure adjustment.2.String of ink roll of the initial point of dynamic adjustmentString of ink roll string of dynamic starting point is the string of ink roll it and start string move the relative position of the printing plate cylinder, this position when the change, printed on paper on the direction of walking ink film thickness also should produce corresponding change. In figure no.6 middle school, printing graphic starting point ink layer the thickest, such as D shows, print drag for A slightly ink layer, according to the most thick with ink prints in the vertical direction pictures area can be ink situation of starting point transferred to the corresponding position,B, C generally describes the string of ink starting point on the map layer thickness different influence of civilization. For sea Johnson's fort M - during adjustment, loosen the screws point start printing press, roller rotation, strung ink roll not string move, so corresponding position is changed, the starting point of ink will get change.中文译文：印刷机质量的好坏，最终是以印品的质量来衡量。