本发明公开了一种泡沫控制剂和通过使用泡沫控制剂来进行金属加工流体的控制泡沫的方法，其中该试剂至少包含支链醇。
The present invention describes a water based semi-synthetic metal working fluid comprising a base oil, an organic acid, emulsifiers, optionally a concentrate additive, water and a microbial growth control agent which comprises a glycol ether amine.
The present invention describes a water-based metal working fluid comprising a base oil, an organic acid, optionally emulsifiers, a concentrate additive, water and a microbial growth control agent which comprises an aminopropanediol.
The present invention describes a water based semi-synthetic metal working fluid comprising a base oil, an organic acid, emulsifiers, a concentrate additive, water and a microbial growth control agent which comprises an alky alcohol amine.
The current invention relates to a novel class of alkyl alcohol amines where the amine is a primary amine. Embodiments relate to a method of controlling microbial growth in metal working fluids, comprising adding such an alkyl alcohol amine to the metal working fluid. Other embodiments relate to semi-synthetic metal working fluid compositions which include the microbial growth control agent comprising this particular class of alkyl alcohol amines.
A microbial growth control agent and method of controlling microbial growth in metal working fluids, wherein the agent comprises at least a glycol ether amine.
本發明描述一種水基半合成金屬加工液，其包含基礎油、有機酸、乳化劑、濃縮添加劑、水、及包含環狀多官能胺之微生物生長控制劑。
PURPOSE:To improve the airtightness of a compression chamber and improve compression efficiency by providing a ring-shaped plate on the inner periphery on the upper end plate side of the piston of a rolling piston type rotary compressor. CONSTITUTION:A ring-shaped plate 7b having a width which allows a piston 7a to rotate is provided on the end inner periphery on the upper end plate 4 side of the piston 7a of a rolling piston type rotary compressor. Accordingly, the contact area between the inner wall face of the upper end plate 4 and the side face of the piston 7a is increased, and the airtightness of a compression chamber is made excellent and compression efficiency can be improved.
