The principle of solid polishing wax and how long the shelf life
can be kept. First of all, let's look at the characteristics,
precautions and selection criteria of solid polishing wax and
polishing abrasives. First, let's talk about the tools, polishing
wheels, and plane grinders (polishing machines) of solid polishing
wax. When polishing metal surfaces, solid polishing waxes play a
vital role and require different working properties. So, what
properties does solid polishing wax need to have in order to meet
the requirements of the surface grinder (polishing machine) to give
full play to the polishing of metal surfaces? 1. Three
characteristics of solid polishing wax: 1. Polishing performance:
The polishing liquid equipped with appropriate particles of
abrasives has the effect of fast light output and stable polishing
performance in the process of polishing with a flat polishing
machine. The polishing can achieve large smoothness and good gloss
within 1 hour. Precision precision. 2. Anti-rust performance: For
the mirror polishing of some stainless steel plates, the polishing
liquid of the plane polishing machine should also have an anti-rust
function. Avoid strength reduction at stress concentration
locations. 3. Cooling performance: The cooling performance of the
polishing liquid is mainly for those processing materials with poor
thermal conductivity. It is beneficial for the frictional heat to
be dissipated in time. Generally, the thermal conductivity of water
is much larger than that of oil, so in many cases, the polishing
liquid is oil-in-water to meet the heat dissipation requirements
and avoid burns in the plane polishing machine. The performance of
the plane grinder (polishing machine) is fully exerted, which has a
great relationship with the configuration of the above-mentioned
polishing performance, anti-rust performance and cooling
performance of the solid polishing wax. Solid polishing wax and
sandpaper, dust-free dry grinder, sandpaper are equivalent to
polishing abrasive materials. So, where are polishing abrasives
used specifically? What are the precautions in the manufacturing
process? Second, the characteristics of polishing abrasive
materials Polishing abrasive materials can be used to process
various surfaces of metal and non-metal materials, such as planes,
cylinders, conical surfaces, threads, tooth surfaces, spherical
surfaces, etc. In addition, the polishing abrasive material also
has the following characteristics: 1. Manual grinding is used for
single-piece small batch production, and mechanical grinding is
used for large batches. The hardness of the grinding tool should be
lower than that of the workpiece, and the wear resistance is
better. The commonly used materials are gray cast iron, mild steel,
brass, red copper, etc. 2. Abrasives are mixtures of abrasives and
grease, and are available in three types: liquid, paste and solid.
3. In order to reduce cutting heat, grinding is generally carried
out under low pressure and low speed conditions. During rough
grinding, the pressure is less than 0.3 MPa, and the speed is
20-120 m/min; during fine grinding, the pressure is 0.03-0.05 MPa,
and the speed is 10-30 m/min. 3. Matters needing attention in the
manufacturing process of polishing and abrasive materials In the
production process of polishing and abrasive materials, it mainly
includes before, during and after production. these three steps. 1.
Polishing and abrasive material is a kind of finishing process on
the machined surface through the relative movement of the grinding
tool and the workpiece under certain pressure by using abrasive
particles coated or pressed on the grinding tool. 2. The workpiece
should be pre-processed by fine grinding before grinding, and the
grinding allowance left is generally 0.005-0.03 mm. 3. After
grinding, the machining accuracy can reach IT5-01, and the surface
roughness can reach 0.63-0.01 microns. After understanding the
characteristics and precautions of the above-mentioned solid
polishing wax, sand disc, dust-free dry grinder and other polishing
and abrasive materials, what criteria should we choose according to
when choosing polishing and abrasive materials? 4. Criteria for
selecting polishing and abrasive materials: The type, shape and
particle size of the polishing material are selected according to
the base material and polishing requirements of the workpiece to be
processed. Usually metal parts are polished with hard polishing
abrasives, and soft parts such as plastics are polished with a
mixture of animals and plants and hard polishing abrasives. When
polishing the surface with high quality requirements, polishing and
abrasive materials with a relatively smooth shape should be used.
The size of the polishing abrasive material should be smaller than
1/3 of the inner hole of the part, but not too small to prevent the
hole from being blocked by the polishing abrasive material. white
wax Because the surface hardness of the polished metal needs to be
higher than the hardness and toughness of the polished product,
otherwise the grinding cannot be achieved. Solid polishing wax has
good heat resistance and thermal stability. During the polishing
process, the friction of the high-speed rotation of the polishing
wheel is a dramatic increase in the temperature of the polishing
surface. (The temperature can reach more than 120-500) If the
abrasive is easily decomposed, the hardness and toughness will
decrease, which will affect the polishing effect. It has good
stability at working temperature and solid polishing wax, without
any chemical reaction, solid polishing wax polishing surface or
solid polishing wax and inherent mechanical properties change,
which affects the smoothness of polishing surface. In the process
of preparing materials for the production of solid polishing wax,
first of all, the materials with various water ratios are not
necessary to be said, and then the paste materials are mixed with
welding and heating to melt. After stirring evenly, slowly grind
the materials until they have melted and mixed with oil. Mix the
solution, stir and melt to mix, add additives, stir slowly evenly,
well control the melting temperature of the cavity material can not
be too high or burn, heat evenly, the wax solution on the body
surface is mixed evenly and shiny, stop heating, stir to make the
temperature drop slowly, when the temperature Drop to a suitable
discharge temperature, add the wax solution to the wax solution
prepared for the cooling surface of the mold to solidify, cool it
in cold water and release the mold, and then put the wax dry water
into the box for packaging. Therefore, it must be used within the
shelf life, and the solid polishing wax does not have the polishing
effect of the expired product.