焊缝

The fillet ray insqection technique for plate and tube of active service waste boiler has been introduced in details,as well as its reliability.

对在役废热锅炉管板角焊缝的射线检验技术进行了详细介绍，并对检验可靠性进行了讨论。

It is considered that pre-tension stress counteract the compression stress in welding zone generated by thermal expansion, consequently reduce the compression plastic deformation, and depress the tension stress in welding zone when cooling down, and accordingly minish the compression stresses far from the welding zone.

分析认为，预拉伸应力部分抵消了焊接区热膨胀产生的压缩应力，从而减小了压缩塑性变形，进而减小了冷却时焊接区域的拉伸应力水平，相应地远离焊缝区域的压缩应力也随之减小。

Measuring Root Opening with Taper Gauge

图39。使用锥形规测量焊缝根部开口

No weld plastic storage tanks, motor transport tank, tank transport ship products using the international advanced one-time model of rotating plastic molding process, the product has a total of polyethylene forming a seamless, impact resistance, anti-aging, weight Light, non-leakage, acid, long life, consistent with the health standards, etc., the use of the performance is much better than the traditional glass containers steel, PVC welding containers, polypropylene containers welded, steel-lined rubber, steel-lined steel containers such as glass, ordinary life is a traditional more than twice the FRP, GRP impact is more than three times, to a large extent can be replaced by stainless steel, titanium and other m e t al containers, is the best of today's new generation of high-performance corrosion-resistant chemical liquid storage transportation equipment, and cheap.

无焊缝塑料储罐、汽车运输贮罐、船舶运输贮槽系列产品采用国际先进的旋塑工艺一次性模式成型，产品具有整体聚乙烯一次成型无接缝、抗冲击、抗老化、重量轻、不渗漏、耐酸碱、寿命长、符合卫生标准等优点，使用性能大大优于传统的普通玻璃钢容器、聚氯乙烯焊接容器、聚丙烯焊接容器、钢衬橡胶、钢衬玻璃钢等容器，使用寿命是传统普通玻璃钢的二倍以上，抗冲击是玻璃钢的三倍以上，在相当大的范围内可取代不锈钢、钛等金属制品容器，是当今最理想的新一代高效的化工液体耐腐蚀贮运设备，且价廉物美。

Setting high speed counter, the changed angle of positioner rotation is converted to pulse number by encoder. Via comparison and judgment, the manipulator and positioner are realized real-time control. Thereby, the intelligent control of welding teaching and playback, seam tracking are achieved.

设置高速计数器，利用编码器将变位机转动的角度变化转换成脉冲数的多少，通过比较和判断，对操作机和变位机进行实时控制，从而实现焊接示教再现和焊缝跟踪的智能控制。

The measurement of scanning Kelvin probe indicated that before immersion, there was large potential drop between copper and soldering tin.

表面微区电位分布测试发现，铜/焊锡电极在浸泡前存在较大的电位差，但焊缝处电(来源：ABC90论文97网www.abclunwen.com)位差较小。

The effects of single-wire unitary pulsed metal inert-gas, synergic pulsed MIG and double-wires tandem MIG welding processes on the microstructures and properties of high strength Al-Cu alloy welds were investigated.

研究了单丝单脉冲、单丝复合脉冲和双丝TandemMIG焊对高强Al Cu合金焊缝组织及性能的影响。

The effect of welding parameters of surfacing welding shaping on geometric appearance of seam has been analyzed,also,the single-track multi-layers surfacing welding experiments have been carried out.

分析了堆焊快速成型的基本工艺参数对成型焊缝几何形状的影响，并进行了堆焊单壁墙试验，同时对试样进行了显微组织分析。

This was due to the heat effect of welding to connect the side plates and the beam flanges, which caused brittle tear of beam flanges in the heat effect zone outside of reinforced part.

主要原因是侧板与梁翼缘的对接焊缝的影响使得加强区外焊接热影响区母材变脆而发生脆性撕裂。

The micro-character of weld line in copper tubes with inner grooved by high frequency welding for air-conditionings and refrigerators was briefly studied,the existent manner and the reason of quality problem were found out,betterment measure was put forward and realized,the problem in the production was settled and the product quality became stable.

通过对空调与制冷用高频焊接内螺纹铜管焊缝微观组织特性的研究，找出了焊管质量问题的存在方式及其产生原因，提出了改进方法并加以实现，最终解决了生产中存在的问题，使产品质量得到了稳定。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐