Durostone Sheet Plate

The material of synthetic stone is a composite material made of high temperature nano-fiber mat and high performance epoxy resin, through lamination lamination and other processes, which has the characteristics of low thermal conductivity, flame retardant, high temperature resistance, anti-static, light weight and chemical corrosion resistance.
Synthetic stone plate is widely used in electronics, aviation, ships and other fields. In the electronic manufacturing welding with protective material world, synthetic stone plate material has easy processing, high strength requirements, thin plate in the thermal state and warming process to maintain the maximum bending strength of the processing workpiece best choice. For electronic manufacturing wave soldering / reflow soldering provides a durable, high temperature resistant, anti-static PCB board carrier. This is why synthetic stone is also known as a surface mount tray material.

Advantages and disadvantages of synthetic stone:

Synthetic stone manufacturers according to the synthetic stone production process, synthetic stone mainly has the following characteristics (mainly for 95% of the natural marble composition, processing technology is mature synthetic stone)

1. No color difference, the market to see the natural marble directly from the mine, by a little processing, the formation of the mine and the composition of the marble to determine the natural stone grain, so that many natural stone grain inconsistency, and synthetic stone is crushed natural marble, and processing and formation, so you can well control the color difference, so that synthetic stone in a certain range can look no obvious Color difference, so the benefit is to facilitate the laying of large areas, the overall to maintain a consistent style.

2. Environmental protection, natural marble according to the composition of different and different characteristics, some deep colors contain radioactive substances, and synthetic stone in the choice of natural stone stone powder can avoid these substances, so as to achieve the environmental protection standard of no radiation.

3. Close to the grain of natural stone, synthetic stone can do very close to the natural texture, color sense, so in some colors, synthetic stone large area paving effect is completely comparable to natural stone.

4. Excellent performance, good water absorption, structure than natural stone more compact.

5. No fine cracks, anti-dirt, easy to clean. Synthetic stone manufacturers

Product name: Synthetic stone board (carbon fiber board) is a composite material made of glass fiber and anti-static high mechanical strength resin.

Main characteristics: In the environment of gradually increasing temperature, the ability to continue to maintain its physical properties, so that it can be in the wave soldering process, to achieve high standards of results and will not have deformation of the situation. The high-temperature nanocomposites (composites) do not separate when subjected to the harsh environment of 350°C for a short period of time and 260°C for a continuous period of operation. Synthetic stone can improve the quality of PCBA in the wave soldering process, to avoid contamination of gold fingers or contact holes due to human touch.

Application areas: insulation test fixtures, wave soldering, reflow soldering, SMT surface mount, over the oven tray, over the tin oven fixture and other PCB and electronic industries.

Synthetic stone is a kind of green stone, it is made of more than 95% natural stone powder, plus a small amount of polyester and adhesive, mixed under vacuum, pressure, vibration molding.

Synthetic stone originated from "stone kingdom" of Italy, the English name is "compositestone". According to the raw material, it can be divided into two kinds: synthetic marble and synthetic quartz stone.

Synthetic stone material

Synthetic stone material is a composite material made of high temperature nano-fiber mat and high performance epoxy resin, with low thermal conductivity, flame retardant and high temperature resistance, anti-static, light weight and chemical resistance. In addition, synthetic stone materials also have the following characteristics.

1. High temperature nanocomposites (synthetic stone) have better physical properties in the gradually rising temperature.

2. The low temperature conductivity of synthetic stone ensures the state of heat distribution on the substrate.

3. After repeated substrate mounting process, the dimensional stability and flatness can be maintained.

4. The characteristics of synthetic stone enable precision processing of substrate mounting jig.

5. The synthetic resin component of synthetic stone can effectively block the activity of flux and prevent tin tip generation.

Synthetic stone characteristics, uses and functions

Characteristics: It is made of glass fiber or glass pound cloth, high temperature resistant resin, nano-materials, and a variety of inorganic materials. It has the characteristics of high temperature resistance, corrosion resistance, anti-static and deformation resistance.

Use: Applicable to the electronic industry PCB production process kind of process supplies - carrier (or jig / fixture / tooling), divided into wave / reflow soldering jig, SMT surface mounting jig and other categories

Function: 1. in wave soldering, reflow soldering process of PCB board high temperature protection, clean protection, accurate welding; 2. to support thin substrates, soft circuit boards, irregular shape substrate, to prevent the substrate in reflow soldering bending phenomenon; 3. can carry multi-link board to increase production efficiency.

Durostone® materials have been developed for all procedures within the PCB assembly process. There are three main grades which are suitable for use in the SMT reflow and wave soldering processes, Durostone® CHP760, CAS761 and CAG762. 

Durostone ® materials are designed and typically recommended for use in manufacturing solder pallets for wave-solder applications of printed circuit boards (PCB's). These materials can also be used for carriers in solder paste printing, SMT placement, IR-reflow, and conformal coating operations.

These materials offer the following features:

• Excellent mechanical properties at elevated temperatures including the lead-free process.

• Low thermal conductivity.

• Excellent machining properties enabling the manufacture of complex design solder pallets.

• Good resistance to chemicals used in modern fluxes.

Durostone® WGR781 is a woven glass laminate which has been specially formulated to withstand extreme temperatures and aggressive fluxes. Fluxes containing halides or halogen activators can reduce a material´s lifespan,but Durostone® WGR781 can run many thousands of cycles without any adverse effect. The woven glass reinforcement ensures that the flux does not penetrate the solder pallet surface and expose fibres.The resin used to produce Durostone® WGR781 can operate at a continous temperature of 280°C without degradation. The material also displays excellent mechanically properties and provides the necessary dimensional stability at elevated temperatures in the wave soldering process.Durostone® WGR781 has excellent machining properties, with walls of just 0.50 mm thick possible.

Material Selector

The following flow chart enables the correct choice of

material grade depending on the process parameters.