Environment-friendly composition of cutting fluid for drilling machining of common carbon structural steel

Abstract

The invention discloses an environment-friendly composition of cutting fluid for drilling machining of common carbon structural steel. The environment-friendly composition adopts composite base oil of 50% of number 5 total loss system oil and 50% of dibutyl sebacate (castor based) as base oil, together with a plurality of composite additives, including an antioxidant, a metal deactivator, an oiliness agent, a friction improver, an extreme pressure agent, an antiwear agent, an antirust agent, an anti-foaming agent, an oxidation and corrosion inhibitor, an antifogging agent and the like. The environment-friendly composition has a good cooling effect to remove heat generated by high temperature deformation and friction and inhibit generation of built-up edges, good diameter lubricity to reduce frictional wear between a blade and a bearing and ensure a good lubrication state of a cutter at high temperature in a cutting area, and good permeability and chip removal capability to timely permeate the cutting fluid to the blade and keep smooth discharge of cuttings.

Description

technical field [0001] The invention belongs to the field of metal processing lubricants, in particular to an environment-friendly composition of drilling and processing cutting fluid for ordinary carbon structural steel. Background technique [0002] Ordinary carbon structural steel, also known as ordinary carbon steel, has wide restrictions on carbon content, performance range, and content of phosphorus, sulfur and other residual elements. In China and some countries, it is divided into three categories according to the guarantee conditions of delivery: Class A steel (Class A steel) is the steel with guaranteed mechanical properties. Class B steel (Class B steel) is steel with a guaranteed chemical composition. Special steel (C-type steel) is a steel that guarantees both mechanical properties and chemical composition, and is often used to manufacture more important structural parts. China currently produces and uses the most A3 steel (Class A No. 3 steel) with a carbon c...

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Problems solved by technology

The drilling motion consists of the cutting motion dominated by the rotary motion of the drill bit. The drilling tool moves relative to the workpiece and feeds axially, and its machining accuracy is low.

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