榫齿

Firstly, achieving a new low and high cycle noninterfering loading, the high frequency induction local heating, the control of high cycle vibration frequency and amplitude, and the crack propagation real-time detection, an experimental system of L-HCCF at elevated temperature is established. Secondly, under two vibration frequency (50Hz and 100Hz), the contrast experiment of light and serious corrosion disc slots is done. It is found that the experimental L-HCCF life of serious corrosion disc is less than that of light's, but its dispersion is larger, and the experimental failure is identical with the service's.

首先，进行大量试验工作，提出了高低周疲劳载荷的新型加载方案，并解决了高频感应局部加温、振动调频及裂纹实时监测等多个技术难点，建立了涡轮盘全尺寸高温复合疲劳试验系统；验证试验做到了故障再现；接着进行了两种频比（振频50HZ与100HZ）的轻、重腐蚀盘的对比试验；由对榫槽第一齿进行裂纹实时跟踪，得出了枞树型榫槽的复合疲劳裂纹扩展特点规律；对榫齿断口进行的金相分析表明：裂纹首先由第一齿开始，断口系复合疲劳；试验结果显示：重腐蚀盘试验寿命较轻腐蚀盘有显著的下降，而且分散性较大。

The comb tenoning machine is newest automatically, manual MX3510 \ 4010 \ 4012 \ 4014 \ 4016 mainly uses in hitting, the short lumber splicing comb tenon, specially to produces the joiner board, the prop, the furniture and so on, it raises the lumber use factor, in order to the longitudinal agglutination joining-up makes the long size the specification material ideal processing equipment.

梳齿机最新自动、手动型MX3510、4010、4012、4014、4016型主要用于中、短木材的拼接梳齿榫，特别对生产细木工板、支柱、家具等，它不仅提高木材的利用率，而且便于纵向胶合并接制成长尺寸的规格料的理想加工设备。

The comb tenoning machine is newest automatically, manual MX 4025 mainly uses in hitting, the short lumber splicing comb tenon, specially to produces the joiner board, the prop, the furniture and so on, it raises the lumber use factor, in order to the longitudinal

梳齿机最新自动、手动型MX4025型主要用于中、短木材的拼接梳齿榫，特别对生产细木工板、支柱、家具等，它不仅提高木材的利用率，而且便于纵向胶合并接制成长尺寸的规格料的理想加工设备。

The comb tenoning machine is newest automatically, manual MX3510 \ 4010 \ 4012 \ 4014 \ 4016 mainly uses in hitting, the short lumber splicing comb tenon, specially to produces the joiner board, the prop, the furniture and so on, it raises the lumber use factor, in order to the longitudinal agglutination joining-up makes the long size the specification material ideal processing equipment.

梳齿开榫机最新自动、手动型MX3510\4010\4012\4014\4016型主要用于中、短木材的拼接梳齿榫，特别对生产细木工板、支柱、家具等，它是提高木材利用率，以便纵向胶合并接制成长尺寸的规格料的理想加工设备。

Comb tenoning machine Merit:①The this aircraft uses the straight line guide rail, the precision bearing, the operation is facile;②Has the structure compact, does not fill saws the froth, the precision high, the work table area big, the life long and so on the characteristics;③Has the air operated card functions and so on tight, feed control, auto-stop, automatic rejected material;④Is equipped with the electrical machinery superheat automatic protector and stops the switch anxiously, after the emergency stop the air cylinder may lock automatically;⑤Uses in constructing the profession woodenly only then (below 15*15cm), zygote board docking enhances efficiency 40% compared to the similar product.

梳齿开榫机优点：①本机使用直线导轨、精密轴承，操作轻便；②具有结构紧凑、不塞锯沫、精度高、工作台面积大、寿命长等特点；③配有气动卡紧、自动送料、自动停机、自动退料等功能；④设有电机过热自动保护器和急停开关，紧急停车后气缸可自动锁紧；⑤用于建筑行业的方木（15*15cm以下）、合子板的对接比同类产品提高效率40%。

Hoisting Machinery Plant main production: 20 tons of lifting equipment; small loaders, forklifts, crane, cranes, electric hoist, floor waxing machine, bending steel bars and other construction machinery products; Woodworking Machinery Factory main production : MX3510 - 3514 Series, MX4010 - 4016 Series comb machine, Jiemu machine; MH1525 - MX1560 series of finger-comb-tenon (short-to lead plane), in particular the four meters, five meters, six meters, construction Wood products dedicated to lead plane, much of clients.

起重机械分厂主要生产：20吨以下的起重设备；小型装载机、铲车、天车、吊车、电葫芦、地板打蜡机、钢筋弯曲机等建筑机械系列产品；木工机械分厂主要生产：MX3510--3514系列、MX4010--4016系列梳齿机、接木机；MH1525--MX1560系列梳齿榫指接机；特别是4米、5米、6米建筑方木专用接长机系列产品，则倍受客户青睐。

In this paper, a tooth for milling tenon electrical control of the entire process, electrical components will be used to achieve the milling work tenon tooth path of automatic and manual control, selected relay - access control systems to accomplish this purpose, it has the advantage of Line intuitive, are most commonly used electrical appliances, the replacement of convenience, cheaper prices, through repeated experiments and demonstration confirmed by the use of electrical components can accurately on a milling machine tenon teeth effective control of the machine tools to improve the control of a certain value .

本文研究了专用榫齿铣电气控制的全部过程，将利用电气元件来实现对榫齿铣工作路径的自动与手动控制，选用了继电-接触系统来完成这一控制目的，它的优点是线路直观，大部分电器均为常用电器，更换方便，价格较便宜，通过反复的实验与论证结果证实所用电气元件能准确对机床榫齿铣进行有效控制，对机床控制的改进有一定的参考价值。

The results of conversion show that the serious disc must be rejected because its reliable L-HCCF life is greatly less than an overhaul period. Finally, the load distribution of centrifugal and vibration force on labe is derived. Using two method, load on the crack labe gradually reducing and keeping constant with the crack propagation, a crack propagation analysis of fir-tree slot is carried out, and the calculating L-HCCF crack propagation life of slot on the unload method, which is nearly 3 times longer than that on constant method, is 20 times shorter than the pure low cycle life, and agree well with the experimental's.

最后，分析了离心力载荷和振动载荷在榫齿上的分布，进行了榫槽榫齿的有限元计算；提出了枞树型榫槽的卸载概念，并按带裂纹榫齿上的承载随裂纹增长而逐步减少和始终保持不变两种处理方法，进行了复合疲劳裂纹扩展及其寿命计算，由计算得出卸载下复合疲劳裂纹扩展寿命较单纯低周疲劳寿命下降二十多倍；按卸载处理的疲劳裂纹扩展寿命是按恒载处理的三倍多，前者与试验吻合，而后者则偏差较大。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。