Customers who know S&A water chillers clearly
know that, the production process of S&A water chillers completely
adopt mass-modularized production standard, each finished product has
passed strict quality test before leaving the factory, and the service
life of the water chillers can reach ten years under proper maintenance!
A customer of S&A Water Chiller in CNC engraving machine uses
S&A CW-3000 water chiller. But the CW-3000 water chillers break down
one by one in two years, and the cause of failure is that pipe blockage
of water chiller results in burning of water pump, which confuses
S&A!
Recently, the customer in CNC engraving machine called again, hoping to
purchase pump components of S&A Water Chiller to replace the failed
components of original water chillers. This time, S&A Water Chiller
decided to take the initiative to find the cause of pump burning!
Through careful inquiry, S&A Water Chiller found that, the
circulating water chiller of the customer used auxiliary cooling liquid,
but this kind of cooling liquid is not the special cooling liquid used
for automobile machine suggested by S&A, but the cooling liquid used
for metal cutting.
According to the experience of S&A Water Chiller, if the cooling
liquid used for metal cutting is added into the circulating cooling
water of water chiller, after long-term use, the cooling liquid will
form oil clot, which will lead pipe blockage of water chiller, increase
operating load to water pump and then cause failure of water chiller.
So, the [chief culprit" is found out finally!
Genuine knowledge comes from practice. If it is needed to add cooling
liquid to S&A water chiller, please add the cooling liquid used for
automobile engine according to the proportion stipulated on the
specification, so as to exert the function of cooling liquid and improve
the cooling effect of water chiller.
The technical parameter of CW-3000: http://Products/ChillerCW300050Wradi.html
CONTACT S&A
TE:+86-20-89301885
FAX:+86-20-84309967
SKYPE: teyuchiller
Email:
Website: http://
Architectural Hardware Precision Casting
Architectural hardware precision casting or architectural hardware investment casting, silica sol process. It is a casting process with little or no cutting.
Cast architectural hardware is an excellent process technology in the foundry industry. Its application is very extensive. Architectural hardware cast not only applies to the casting of various types and alloys, but also produces the dimensional accuracy of castings. The surface quality is higher than that of other casting methods, and even castings that are difficult to cast and which are difficult to cast have high temperature resistance and are not easily processed can be cast using investment casting.
In wax pattern process,we mix stearic acid and paraffin wax in wax pattern making,as you know,it is better than polyethylene,and the wax deformation is small.
In shell making,we adopt automatic sand-covering production line, which was invented under the guidance of our general manager.The indoor temperature was controlled by air-conditions,keeping the temperature at 24℃±1℃, which can make the castings much more stable,the internal tissues much more well-proportioned.
In shell hardening process,we use aluminium chloride to harden the shell.This can make the shell so hard that it can`t be distorted,at the same time the bug which the casting may have will be decreased.If there are letters or numbers in it,they will be much clearer.
In dewaxing process,about 95% of the castings suppliers adopt the original water dewaxing technics,but we using the advanced steam dewaxing technics,which we are very proud of. This can effectively avoid the air-hole and sand-hole, making the casting look much nicer.
In smelt process, we use middle frequency furnace, avoiding the emergence of the oxide; in molten steel control part, we use Germany-imported direct reading spectrometer machine, assuring its quality before the molten steel out of the furnace. During this process we use ERP production and management software to get the feedback information.
In shell-knock out process, we have special machines,which can decrease the hitting and knocking, easily made by manual shell knocking out.
In shot-blasting process, we have crawler-type and hanging shot-blasting machine, with steel shot 0.5-0.8, making the products smooth.Of course, if the customer wants it look much nicer, we also can carry out sand-blast treatment.
In heat treatment process, we use electric furnace, and adopt double-temperature control in order to heat the products equally. As a result, the products will have great metallurgical structure.
Our tolerance can reach at the grade of 5-7 according to our country`s tolerance standard.
In machining process,we have 12 CNC machining centers and some other machines, so we can make further machining if the customers need.
Architectural Hardware Precision Casting,Architectural Hardware Lost Wax Casts,Architectural Hardware Investment Casting,Investment Casting for Architectural Hardware
Wei fang junlong precision casting Co.,Ltd , https://www.junlongcasting.com