spot corrosion

Besides, through contact spot impedance test on different corrosion products, it could get the impact extent of different corrosion products on contact spot impedance character. The test result indicate that nitric acid stream influence the contact spot impedance much more than sulfur dioxide.

另外，通过对不同腐蚀物的触点进行阻抗测试，可以对比得到不同腐蚀物对触点阻抗特性的影响程度，结果表明硝酸蒸汽相对于SO2气体来说，对触点的阻抗影响更大。

No spot corrosion occurs on the surface of the sample with titanate conversion coating after 336 h of salt spray test.

钛酸盐转化处理的样品经336h盐雾试验表面无点腐蚀发生。

Cause Analysis for Spot Corrosion of Charging Reducer Gear of Blast Furnace

高炉上料减速机齿轮点蚀原因分析

DN3 series spot welder is widely utilized in the spot welding of mild steel, corrosion resistant plate and round wire in the industries such as panel beating, light fittings and hardware appliances.

系列点焊机同样广泛应用于钣金，灯具，五金电器行业中低碳钢、不锈钢板和圆丝的点焊。

Common corrosion forms of spot corrosion, corrosion and galvanic corrosion of fire engine were introduced.

对消防车常见的腐蚀形式———点腐蚀 、 缝隙腐蚀和电偶腐蚀进行了介绍.