论文部分内容阅读
在设备制作和安装过程中,经常遇到一些管径较大,而且管壁又很薄的紫铜管,需煨制成各种不同角度的弯管盘管等。紫铜强度低,塑性高,管壁薄不能用锤重敲。用砂或类似砂的一些介质作填充。很难保证其密实度,因而煨制的弯管,椭圆度大,甚至会煨瘪,既影响美观、又妨碍质量,给施工带来困难。我公司三队在酒精厂工程中,用松香作填充物,煨制了成批的直径51×1.5毫米的紫铜管。表面光滑、美观、质量可靠、效率高,具体作法简述如下:1.先将需弯曲部分的铜管作水韧处理(加热至500～600℃用水急冷)以提高其塑性;2.将处理好的铜管(管内不得有积水、油、杂物等,以免与松香反应伤人),一端堵上。
In equipment production and installation process, often encounter some large diameter, and the thin wall of the copper tube, need to simmer into a variety of different angles of the coil and so on. Copper strength is low, high plasticity, the thin wall can not hammer heavy hammer. Use sand or sand-like media for filling. It is difficult to ensure its density, which simmer the bend, ellipticity, or even simmer deflated, both affect the appearance, but also hinder the quality of the construction to bring difficulties. My company three teams in the alcohol plant project, with rosin as a filler, simmer a batch of copper pipes diameter 51 × 1.5 mm. The surface is smooth, beautiful, reliable, high efficiency, the specific practices are summarized as follows: First, the need to bend the part of the brass for tough water treatment (heated to 500 ~ 600 ℃ water quench) to improve its plasticity; Good brass (tube may not have water, oil, debris, etc., so as not to hurt the reaction with rosin), one end plugged.