1, the sintering sintering

Powder or compact under the temperature below the melting point of main components of the heat treatment, the purpose is to through the metallurgical bonding between the particles to improve its strength.

2, fluid permeability, fluid permeability

Under prescribed conditions in unit time for the determination of the amount of liquid or gas through porous body.

3, presintering presintering

Below the sintering temperature of compact under the temperature of heat treatment.

4, pressure sintering pressure

In the sintering process of uniaxial pressure sintering process at the same time.

5, apparent sintering loose powder sintering, gravity sintering

Sintered powder without pressure directly.

6, liquid phase sintering liquid - phase sintering

Have at least two components of powder or compact in formed under a state of liquid phase sintering.

7, burnt oversintering

Sintering temperature and sintering time is too long (or) performance deterioration of the sintering products finally.

8, burn undersintering owe

Low sintering temperature and sintering time is too short (or) the products do not meet the required performance of the sintering.

9, melt infiltration, infiltration

With melting point than the products of low melting point metals or alloys in molten state filling or porosity in the sintered products without sintering process.

10, dewaxing, dewaxing, burn - off

Heat discharge in the compact organic additives (binder or lubricant).

11, mesh belt furnace, mesh belt furnace

Generally by muff protection mesh belt sintering furnace realize furnace continuous transmission parts.

12, the walking beam type furnace walking - beam furnace

Through the walking beam system will be placed in the sintered plate parts to transfer in the furnace of sintering furnace.

13, pusher-type furnace pusher furnace

The parts into burning ship, through the propulsion system to transfer in the furnace sintering furnace parts.

14, sintering neck formation of neck formation

When sintering neck of coupling between particles.

15, foaming blistering

Due to the intense discharge gas in sintering formed on the surface of the bubble phenomenon.

16, sweating, sweating

Compact heat processing liquid leakage phenomenon.

17, crusting sinter burn skin

Sintering, the sintering formed on a surface layer, its performance is different from the inside of the product.

18, relative density, relative density

The density of the porous body with no hole condition the ratio of the density of the same component material, expressed as a percentage.

19, the density of radial crushing radial crushing strength

By applying the radial pressure determination of sintering the bursting strength of cylinder specimen.

20, porosity, porosity

All the pore in the porous body size and the ratio of the total volume.

21, diffusion pore coursing together porosity

Due to ko kendal effect a RMB yuan) spread to another group in the formation of the pore.

22, pore size distribution, pore size distribution

Materials that exist in the aperture at different levels according to the quantity or percentage of volume calculation.

23, apparent hardness apparent hardness

Under prescribed conditions of sintering material hardness, it includes the influence of the pore.

24, entity hardness solid hardness

Under prescribed conditions of sintering material in one phase or particles or an area of hardness, it ruled out the influence of the pore.

25, foaming pressure mercifully - point pressure

Force gas by liquid impregnation products, the minimum pressure required to produce the first bubble.

26, heavy metal, heavy metal

Not less than 16.5 g/cm3 density of sintered materials. Such as: tungsten alloy of nickel and copper.

27, metal ceramic cermet

By at least one metal phase and at least one usually with characteristics of ceramic phase composition of sinter material, not of metal.

28, sintered parts, sintered parts

By the powder forming and sintering improved sintering products, parts are usually has the characteristics of the precision tolerance and ease of installation.

29, the structure of the sintering parts sintered structural parts

Generally used in mechanical manufacturing of sintered parts, not including bearings, filters and friction material.

30, the oil-retaining bearing oiling - retaining bearing

The impregnation of the hole with sintered bearing lubricating oil.

31, sintered metal filters, sintered metal filter

Usually used for solid liquid or solid and gas separation, the permeability of sinter metal parts.

32, sintering magnetic components sintered magnetic part

Can meet the requirements of magnetic sintering parts.

33, sintering friction materials sintered friction material

The sintered material is made from a metal base and metal or nonmetal additive composed of composite material, additives used to alter the friction and wear properties of materials.

34, sintering, electric contact material sintered electrical contact material

With high conductivity and arc corrosion resistance of sintered materials, such as: tungsten copper, tungsten, silver, silver and silver cadmium oxide - graphite composites.

Terms (powder metallurgy sintering processing)

1, after pressure re - pressing

In order to improve the physical and mechanical properties (or), usually to pressure on the sintered products.

2, sizing sizing

In order to achieve required size for the press.

3, plastic coining

In order to achieve a specific surface by pressure.

4, powder forging powder forging

Not manufactured by powder sintering, or sintered preform billet in the process of the sintering densification by forging heat, accompanied by a change in shape.

5, impregnating impregnation

With non-metallic substances (such as oil, wax or resin) filling opening pore connectivity method of sintered parts.

6, water vapor steam treatment

The sintered iron-based products in overheating steam heating, make the surface form ferroferric oxide protective film, so as to improve some performance.