The test equipment was tested in a high-frequency induction furnace and vacuum was obtained using a mechanical pump and a molecular pump.
Performance measurement method
(1) Coat bond strength: Direct stretch measurement method, bonding the rod member to the coating sample with an adhesive and applying vertical pressure, if the coating is characterized by the force with which the coating is peeled from the substrate Adhesion F, then the coating bonding strength = F / S, where S is the surface area of ​​the coating sample.
(2) Porosity: The density of the coating was measured first (measured by the drainage method), and the porosity of the coating was calculated using the formula. Coating density Theoretical density of coating material.
(3) Coating surface roughness: measured by the stylus method.
(4) Sample surface temperature during vacuum high-frequency heating: It is measured by contacting the surface of the sample with a thermocouple.
The effect of heat treatment temperature on the properties of the coating was obtained under the conditions of vacuum degree and holding time of 1 h. With the increase of heat treatment temperature, the bonding strength between the coating and the substrate is gradually enhanced, but the amplitude is not large; the porosity of the coating is gradually reduced, and the coating has a higher density and a good surface quality. The reason is that with the increase of temperature, the high-temperature fusing effect of the coating is getting better and better, the diffusion speed of the coating material in the substrate is increasing, the bonding strength of the coating is improved, and the coating is greatly reduced. The possibility of delamination or even shedding at work; due to the characteristics of high-frequency heating, the temperature of the coarse particles protruding from the coating surface is high, so that it is easily fused, and even liquid phases appear when the temperature is high, so that the coating The density and surface quality have been improved to improve the performance of the coating. In addition, with the increase of temperature, the content of gas and low melting point impurities in the coating and the substrate is greatly reduced, and the high temperature stability of some products used under high temperature and high vacuum conditions is improved, and the high vacuum required for their use is ensured. Degrees, but too high a temperature will cause grain growth of the substrate and affect product performance.
Hydraulic Crimping Machine is choice for crimping Hydraulic Hose , high force and steady quality.
NEW foam inserts introduced to protect your machine from debris dropping into the bottom of the head. With there you will minimize the risk of debris getting into the cylinder which could cause damage to seals and other moving parts of the head. This will significantly extend the life of Hydraulic Hose Crimping Machine. According to usage are divided into: Hose Crimping Machine, Hose Cutting Machine, hose skiving machine, Nut Crimping Machine.
Application:
1. Suitable for outdoor maintaince, easy to carry.
2. Used rubber hose to transmit hydraulic pressure as there working power.
3. Used in building construction, petroleum industry, chemical industry, car and motor industry.
FAQ:
Can you produce the hose with my own brand?
Yes, we have been offering OEM service for 10 years.
Could we pay a visit to your factory?
Yes, you are always welcome to visit our factory.
Can we get the goods without your company name to export?
Yes, we can. We are allowed to use your designated agent's name if you have one.
Can you send us a sample to test quality before ordering?
Yes, we can provide sample by free but the freight and other charges is payed by the customers.
Can you help us do the custom clearance?
Yes, we can. We can help you find a professional custom clearance company to do it.
Can you produce goods with special specification?
First of all, we need to know the specification in details, and then we need to check with our technology department.
Crimping Machine
Crimping Machine,Hydraulic Hose Crimping Machine
Hebei Orient Rubber & Plastic Co., Ltd. , http://www.hiteckhose.com