The advantages and o歌暗peration methods of sand blas科笑ting machine rust rem弟地oval. The methods of 離讀object rust removal 外自can be roughly div會線ided into four c車術ategories: manual rust removal,多機 ultrasonic rust re生有moval, chemical rust remov謝弟al and mechanical rust remova東地l. Manual derusting裡都 is slow and inefficient; Che冷票mical rust removal is a s男場imple and fast met筆業hod, which uses通習 the chemical reaction很聽 between acid and metal oxide to remov妹黑e the corrosive objects on the m美廠etal surface, but the 人我chemical rust rem高機oval effect is 技湖not ideal and the pollution is serious制黃; Ultrasonic rust r裡用emoval is a physical method, mainl舊女y through high-frequency媽店 vibration to remove loose r新員ust. Due to the current technical lev也農el, the effect of rust remova近樹l is poor, and obj那紙ects are easy to regenerate rust in t外行he future. Mechanic水火al derusting usually 影鐵refers to derusting by sa志舞nd blasting machine (shot bl要煙asting machine) wit新得h good effect, low co他吧st and fast speed還西; When removing ru小金st, it can also beau區中tify the surface of obje分綠cts (such as burrs, debris, etc外討.). Considering all kinds of factors, 理算sand blasting machine is a good r音請ust removal method in industr議一ial production at present. What is i市愛ts working principle? 熱年Binchang Machinery briefly弟謝 explained that 服們the sand blasting method is to use com紙音pressed air to s中火pray sand with a cert中物ain particle size through a spra電低y gun to achieve rust removal effect務空.

Advantages of sand blasting謝亮 machine for rust removal:

The derusting effect is ideal,員體 the speed is fast, and the cost is 姐窗low; In additio裡城n, it can also prepare the surface for時藍 coating, spraying, electr工暗oplating and other processes謝花. The sandblasted河說 surface can be c大訊lean and have certain rough銀朋ness requirements, 動弟so as to improve the ad愛那hesion between the co道動ating and the workpiece.

Sand blasting method:

The commonly used rust r有技emoval methods of sandblasting m雨體achine include dry sand外如blasting, wet sa舞月ndblasting, high-pressur服員e water sandblasting, dust-free san小慢dblasting, etc.

1. Dry sand blasti視美ng is dusty, harmful to hea多湖lth and not envi冷時ronmentally frien笑道dly enough; Operat公但ors shall be equipped w白著ith sand blasting clothes and 暗空gloves.

2. Wet method has no湖師 dust, but water will rust the surface關呢 again. Therefore, preventiv但見e measures shall事件 be taken during rust removal.船店 The method is to add 1%~15% a都不ntirust agent (花兵trisodium phosphate鄉謝, sodium carbonat他男e, etc.), emulsifier or so友購apy water into the water. The媽冷 surface of the air co醫分mpressor shall no道場t rust for a short time, and 資年then the maintenance prim影慢er shall be applied.

3. High pressure wa筆年ter sandblasting is mai相間nly used for large-scale derusting of s道電hip hull, oil ta秒新nk, oil tank, boiler, etc. Passivati農吧ng agents and so哥刀apy water are often added t飛月o the water.

4. Dust free sand blasting is a co著民ntinuous cycle of sand addition, sand 作票blasting and sand collection rec明黑overy in a closed金科 system to avoid d門自ust flying.