洛阳理工学院毕业设计（论文）
附 录
附录A 后侧导柱模架
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洛阳理工学院毕业设计（论文）
附录B 凸缘式模柄
附录C 内六角圆柱头螺钉
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洛阳理工学院毕业设计（论文）
附录D J23系列开式可轻压力机主要技术参数
型号 单技术参数 代号 位 滑块公称Pe 压力 滑块行程 封闭高度 连杆调节量 滑块中心线至机身距离 左滑块右 地面前尺寸 后 33
J23- 3.15 J23- 6.3 63 35 150 30 J23- 10 100 45 180 35 J23- 16 160 55 220 45 J23- 25 250 65 270 55 J23- 35 350 100 290 60 J23- 40 400 100 330 65 kN mm mm mm 31.5 25 120 25 S H2 M1 C1 mm 90 110 130 160 200 200 250 a mm 100 140 170 200 250 250 300 b mm 90 120 150 180 220 220 260 洛阳理工学院毕业设计（论文）
直模柄径 孔尺深寸 度 垫块厚度 最大倾斜角 左工作右 台尺前寸 后 b mm 160 200 240 300 370 380 460 a mm 250 310 370 450 560 610 700 H1 mm ° 30 45 30 45 35 35 40 35 50 30 65 30 65 30 l mm 40 55 55 60 60 60 70 d mm 25 30 30 40 40 40 50 ? 34
洛阳理工学院毕业设计（论文）
外文资料翻译
PLAIN CARBON STEEL
Any steel-making process is capable of producing a product that has 0.05% or less carbon. With this small amount of carbon, the properties approach of pure iron with maximum ductility and minimum strength. Maximum ductility is desirable from the standpoint of ease in deformation processing and service use. Minimum strength is desirable for deformation processing. However, higher strengths than that obtainable with this low carbon are desirable from the standpoint of product design. The most practical means of increasing the strength is by the addition or retention of some carbon. However, it should be fully understood that any increase of strength over that pure iron can be obtained only at the expense of some loss of ductility, and the final choice is always a compromise of some degree. Because of the difficulty of composition control or the additional operation of increasing carbon content, the cost of higher carbon, higher strength steel is greater than of low carbon.
Plain Carbon Steels Most Used. Because of their low cost, the majority of steels used are plain carbon steels. These consist of iron combined with carbon concentrated in there ranges classed as low carbon,medium carbon, and high carbon. With the exception of manganese used to control sulphur, other elements are present only in small enough quantities to be considered as impurities, though in some cases they may have minor effect on properties of the material.
Low Carbon. Steel with approximately 6 to 25 points of carbon (0.06%～0.25%)are rated as low carbon steels and are rarely hardened by heat treatment because the low carbon content permits so little formation of hard magnesite that the process is relatively ineffective. Enormous tonnages of these low carbon steels are processed in such structural shapes as sheet,
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