List of Physics and chemistry equipment products
- classification：Physics and chemistry equipment
1126～1140 item / All 15646 items
Reduce the workload from handling heavy objects! Here are five case studies that solved customer challenges! We are also accepting free consultations and tests tailored to your work!
- Other conveying machines
Strong cold wind from room temperature to -13°C! Depending on the usage environment, you can choose between the combo type or the separate type!
- Cooling system
April 10, 2024 (Wednesday) to April 12, 2024 (Friday) Notice of Participation in Nagoya Manufacturing World 2024
Sanwa Shiki Ventilator Co., Ltd. will be exhibiting at the 2024 Monozukuri World (Nagoya) held at Port Messe Nagoya. We will also be showcasing our large cooling fans and cool/warm ambient products. Date: April 10, 2024 - April 12, 2024 Opening: 10:00 AM Location: Nagoya Port Messe (Exhibition Hall 1) *Our booth: 19-1 We would be grateful if you could visit us if you have the time.
Supports CNT aggregation prevention and uniform dispersion. Assists in stabilizing the quality of conductive material slurry through continuous processing.
- Emulsifier/Disperser
- Powder Supply Device
- Dispersion/emulsification equipment/homogenizer
What causes clumping when adding powder? Design points for preventing and addressing poor dispersion.
In dispersion processes, the occurrence of agglomerates (clumps) during powder addition, which cannot be resolved in subsequent dispersion stages, is a common issue in many settings. The cause of this is that the powder does not wet uniformly in the liquid, leading to the formation of localized high-concentration areas. These agglomerates are also referred to as "fisheyes," and due to their internal unwetted structure, they are difficult to break apart. Once an agglomerate forms during powder addition, liquid has difficulty penetrating its interior, resulting in only the outer layer being wetted, which makes it hard for the internal particles to be disintegrated. Additionally, depending on the addition position and speed, the powder may float on the liquid surface or remain stagnant without following the flow within the equipment, promoting the formation of agglomerates. Particularly under conditions of high viscosity or high solid content, the low fluidity makes it challenging to achieve uniformity in the initial dispersion stage, leading to a higher likelihood of agglomerates remaining. Such agglomerates may not be completely resolved even with strong shear in subsequent processes, causing variations in the quality of the final product and introducing foreign substances. To prevent the formation of agglomerates, it is crucial to improve wettability during powder addition, ensure appropriate addition positions and flow design, and optimize the initial dispersion. By performing shear and mixing simultaneously right after addition, as in inline powder addition and simultaneous dispersion, it is possible to suppress the formation of agglomerates and achieve stable dispersion quality.
Easily agglomerated CNF, uniformly without clumping. The quality of dispersion is determined by process design.
- Emulsifier/Disperser
- Dispersion/emulsification equipment/homogenizer
- Emulsifying and dispersing machine
The negative electrode slurry's key is balancing viscosity and dispersion. Process design that can be reproduced up to mass production.
- Emulsifier/Disperser
- Vacuum degassing machine
- Dispersion/emulsification equipment/homogenizer
CNT dispersion is determined by the process. Control of aggregation stabilizes conductivity.
- Emulsifier/Disperser
- Vacuum degassing machine
- Dispersion/emulsification equipment/homogenizer
What are the reasons for the inability to disperse high solid content slurries? Causes of poor dispersion and design points for solutions.
In the dispersion process of high solid content slurries, problems such as "too high viscosity to mix" and "unable to break down agglomerates" occur. The main cause of these issues is the increased frequency of particle contact, which strengthens the cohesive forces. As the solid content concentration increases, the distance between particles decreases, leading to interference between particles that reduces fluidity and prevents sufficient dispersion energy from being transmitted. Additionally, the crowding of particles restricts flow and makes shear localized, resulting in the persistence of undispersed areas and agglomerates. Furthermore, in a high solid content state, the increase in viscosity also leads to poor circulation and stagnation, causing variability in the dispersion state within the process. Particularly in batch processing, mixing inconsistencies and differences in processing history directly translate into quality differences, making it difficult to ensure reproducibility. To achieve stable dispersion under high solid content conditions, it is important not only to increase shear force but also to consider dispersion design that takes into account inter-particle interactions, as well as process design that simultaneously controls flow and shear. By establishing a mechanism like inline continuous processing, where particles pass through the processing area under constant conditions, uniform and highly reproducible dispersion can be achieved even at high solid contents.
Inline continuous process that stabilizes CNT dispersion without disrupting its state.
- Emulsifier/Disperser
- Vacuum degassing machine
- Dispersion/emulsification equipment/homogenizer
Why can't powders be supplied stably? - What causes supply irregularities in low bulk density powders?
In low bulk density powders and fine powders, issues such as "unstable supply," "pulsation," and "bridging without falling" frequently occur. Particularly with CNTs, carbon black, and flake powders, the particles tend to entangle easily and have low flowability, making stable quantitative supply difficult with conventional powder feeding methods. When powder supply becomes unstable, instantaneous concentration fluctuations occur, significantly affecting the dispersion quality, viscosity, and conductivity in subsequent processes. In practice, even problems that appear to be "poor dispersion" often have their causes on the powder supply side. Moreover, in low bulk density powders, bridging, rat-holing, and supply pulsations due to air entrapment are likely to occur within the hopper, and simply relying on feeder capacity may not resolve these issues. To achieve stable supply, it is crucial to design the entire process, including hopper design, supply methods, transport conditions, and feeding methods, according to the characteristics of the powder. Our company offers a solid-liquid mixing process that includes quantitative supply using loss-in-weight feeders and integration with inline dispersion devices. By designing the entire process from powder supply to dispersion as a cohesive unit, we support the establishment of stable manufacturing conditions even for high-performance materials.
Thanks to our unique dispersion system, we can achieve the mixing and dispersion of fine powders in a short time without generating clumps! We can accommodate both continuous and batch processes.
- Emulsifier/Disperser
- Vacuum degassing machine
- Dispersion/emulsification equipment/homogenizer
Verify before failing in mass production. Confirm the reproducibility of slurry dispersion in advance.
- Emulsifier/Disperser
- Vacuum degassing machine
- Dispersion/emulsification equipment/homogenizer
What are the reasons for changes in results from the lab to mass production? Causes and countermeasures for the deterioration of distributed quality during scale-up.
Despite obtaining good dispersion results in the lab, the challenge of unstable quality upon mass production occurs in many settings. The main cause of this is that the dispersion conditions are not replicated due to differences in scale. In lab equipment, the smaller size leads to higher energy density, making shear and flow more uniform, while in mass production equipment, the larger scale often results in insufficient dispersion energy at the same rotational speed and processing time. Additionally, differences in equipment structure and flow patterns can cause variations in the shear history and residence time experienced by particles, leading to differences in the dispersion state. Furthermore, simple scale-up does not ensure that critical parameters such as flow rate, residence time, and shear intensity match, making it difficult to reproduce the same results as in the lab. To address these challenges, it is essential to focus on process design based on dispersion energy density and flow conditions rather than merely increasing equipment size. By designing the system so that particles pass through the processing area under consistent conditions, it is possible to achieve reproducible dispersion quality even when the scale changes, as seen in inline continuous processing.
This air nozzle is ideal for pinpoint blowing with powerful vortex flow.
- Stainless steel container
It is an air nozzle that thoroughly blows air in a 360° range due to the rotational motion of the nozzle.
- Stainless steel container
A new compact and easy-to-store tank-integrated model has arrived.
- Stainless steel container
Automatic flap folding, top and bottom sealing, side belt driven carton sealer.
- Stainless steel container
Two roles in one unit. Achieving highly efficient safety management all at once.
- Stainless steel container
The MI1WST-73FNM uses ultrasonic technology to measure wind speed and direction, as well as temperature, humidity, and atmospheric pressure with multiple sensors.
- Stainless steel container
The MI1UV4CH-249M automatically identifies the test wavelength range and simultaneously measures the UV output and energy of UVA, UVB, UVC, and UVV.
- Stainless steel container